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Aluminium Gutters Direct
All Alumasc Cast Iron Downpipes
Complete your rainwater system with our range of genuine Alumasc Cast Iron Downpipes. Manufactured for strength, durability and an authentic traditional appearance, these downpipes are ideal for listed buildings, heritage restorations, period properties and commercial projects. Designed to withstand the UK’s harsh weather conditions, Alumasc cast iron downpipes provide long-lasting performance with a classic finish. At Aluminium Gutters Direct, we stock genuine Alumasc downpipes, fittings and accessories with expert advice, competitive prices and fast UK delivery.
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39 products
39 products
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{"id":53396404896075,"title":"100 x 75mm \/ Primed (Top Coat Required)","option1":"100 x 75mm","option2":"Primed (Top Coat Required)","option3":null,"sku":"P43\/B\/VAR","requires_shipping":true,"taxable":true,"featured_image":null,"available":true,"name":"Alumasc Apex Heritage - Cast Iron Square Variable Bends - 100 x 75mm \/ Primed (Top Coat Required)","public_title":"100 x 75mm \/ Primed (Top Coat Required)","options":["100 x 75mm","Primed (Top Coat Required)"],"price":26048,"weight":0,"compare_at_price":44526,"inventory_management":null,"barcode":null,"requires_selling_plan":false,"selling_plan_allocations":[],"quantity_rule":{"min":1,"max":null,"increment":1}}
Alumasc
From £203.66
£348.11
-41%
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{"id":53396406239563,"title":"75 x 75mm \/ 92.5° \/ Primed (Top Coat Required)","option1":"75 x 75mm","option2":"92.5°","option3":"Primed (Top Coat Required)","sku":"P33\/BR\/92R","requires_shipping":true,"taxable":true,"featured_image":null,"available":true,"name":"Alumasc Apex Heritage - Cast Iron Square Right Branches - 75 x 75mm \/ 92.5° \/ Primed (Top Coat Required)","public_title":"75 x 75mm \/ 92.5° \/ Primed (Top Coat Required)","options":["75 x 75mm","92.5°","Primed (Top Coat Required)"],"price":18187,"weight":0,"compare_at_price":50646,"inventory_management":null,"barcode":null,"requires_selling_plan":false,"selling_plan_allocations":[],"quantity_rule":{"min":1,"max":null,"increment":1}}
Alumasc
From £173.07
£481.96
-64%
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{"id":53396405223755,"title":"75 x 75mm \/ 92.5° \/ Primed (Top Coat Required)","option1":"75 x 75mm","option2":"92.5°","option3":"Primed (Top Coat Required)","sku":"P33\/BR\/92L","requires_shipping":true,"taxable":true,"featured_image":null,"available":true,"name":"Alumasc Apex Heritage - Cast Iron Square Left Branches - 75 x 75mm \/ 92.5° \/ Primed (Top Coat Required)","public_title":"75 x 75mm \/ 92.5° \/ Primed (Top Coat Required)","options":["75 x 75mm","92.5°","Primed (Top Coat Required)"],"price":18187,"weight":0,"compare_at_price":50646,"inventory_management":null,"barcode":null,"requires_selling_plan":false,"selling_plan_allocations":[],"quantity_rule":{"min":1,"max":null,"increment":1}}
Alumasc
From £173.07
£481.96
-64%
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In stock
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{"id":53396407320907,"title":"75 x 75mm \/ Primed (Top Coat Required)","option1":"75 x 75mm","option2":"Primed (Top Coat Required)","option3":null,"sku":"P33\/AP","requires_shipping":true,"taxable":true,"featured_image":null,"available":true,"name":"Alumasc Apex Heritage - Cast Iron Square Access Pipes - 75 x 75mm \/ Primed (Top Coat Required)","public_title":"75 x 75mm \/ Primed (Top Coat Required)","options":["75 x 75mm","Primed (Top Coat Required)"],"price":16206,"weight":0,"compare_at_price":45125,"inventory_management":null,"barcode":null,"requires_selling_plan":false,"selling_plan_allocations":[],"quantity_rule":{"min":1,"max":null,"increment":1}}
Alumasc
From £161.70
£450.29
-64%
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{"id":53396398899531,"title":"75 x 75mm \/ 1.83m \/ Primed (Top Coat Required)","option1":"75 x 75mm","option2":"1.83m","option3":"Primed (Top Coat Required)","sku":"P33\/6FT","requires_shipping":true,"taxable":true,"featured_image":null,"available":true,"name":"Alumasc Apex Heritage - Cast Iron Square Downpipe (With Ears) - 75 x 75mm \/ 1.83m \/ Primed (Top Coat Required)","public_title":"75 x 75mm \/ 1.83m \/ Primed (Top Coat Required)","options":["75 x 75mm","1.83m","Primed (Top Coat Required)"],"price":21066,"weight":0,"compare_at_price":58663,"inventory_management":null,"barcode":null,"requires_selling_plan":false,"selling_plan_allocations":[],"quantity_rule":{"min":1,"max":null,"increment":1}}
Alumasc
From £152.61
£424.96
-64%
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{"id":53396399685963,"title":"75 x 75mm \/ 1.83m \/ Primed (Top Coat Required)","option1":"75 x 75mm","option2":"1.83m","option3":"Primed (Top Coat Required)","sku":"P33\/6FT\/NE","requires_shipping":true,"taxable":true,"featured_image":null,"available":true,"name":"Alumasc Apex Heritage - Cast Iron Square Downpipe (Without Ears) - 75 x 75mm \/ 1.83m \/ Primed (Top Coat Required)","public_title":"75 x 75mm \/ 1.83m \/ Primed (Top Coat Required)","options":["75 x 75mm","1.83m","Primed (Top Coat Required)"],"price":20743,"weight":0,"compare_at_price":57760,"inventory_management":null,"barcode":null,"requires_selling_plan":false,"selling_plan_allocations":[],"quantity_rule":{"min":1,"max":null,"increment":1}}
Alumasc
From £150.74
£419.77
-64%
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{"id":53396397326667,"title":"100mm \/ 63mm \/ Primed (Top Coat Required)","option1":"100mm","option2":"63mm","option3":"Primed (Top Coat Required)","sku":"P40\/DIM\/25","requires_shipping":true,"taxable":true,"featured_image":null,"available":true,"name":"Alumasc Apex Heritage Cast Iron Circular Diminishing Pipe Piece (without ears) - 100mm \/ 63mm \/ Primed (Top Coat Required)","public_title":"100mm \/ 63mm \/ Primed (Top Coat Required)","options":["100mm","63mm","Primed (Top Coat Required)"],"price":13880,"weight":0,"compare_at_price":38651,"inventory_management":null,"barcode":null,"requires_selling_plan":false,"selling_plan_allocations":[],"quantity_rule":{"min":1,"max":null,"increment":1}}
Alumasc
From £138.80
£386.51
-64%
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{"id":53396418330955,"title":"75 x 75mm \/ Primed (Top Coat Required)","option1":"75 x 75mm","option2":"Primed (Top Coat Required)","option3":null,"sku":"P33\/SH\/RE","requires_shipping":true,"taxable":true,"featured_image":null,"available":true,"name":"Alumasc Apex Heritage - Cast Iron Square Right Hand Shoes (With Ears) - 75 x 75mm \/ Primed (Top Coat Required)","public_title":"75 x 75mm \/ Primed (Top Coat Required)","options":["75 x 75mm","Primed (Top Coat Required)"],"price":12813,"weight":0,"compare_at_price":35677,"inventory_management":null,"barcode":null,"requires_selling_plan":false,"selling_plan_allocations":[],"quantity_rule":{"min":1,"max":null,"increment":1}}
Alumasc
From £127.52
£355.09
-64%
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{"id":53396417642827,"title":"75 x 75mm \/ Primed (Top Coat Required)","option1":"75 x 75mm","option2":"Primed (Top Coat Required)","option3":null,"sku":"P33\/SH\/LE","requires_shipping":true,"taxable":true,"featured_image":null,"available":true,"name":"Alumasc Apex Heritage - Cast Iron Square Left Hand Shoes (With Ears) - 75 x 75mm \/ Primed (Top Coat Required)","public_title":"75 x 75mm \/ Primed (Top Coat Required)","options":["75 x 75mm","Primed (Top Coat Required)"],"price":12813,"weight":0,"compare_at_price":35677,"inventory_management":null,"barcode":null,"requires_selling_plan":false,"selling_plan_allocations":[],"quantity_rule":{"min":1,"max":null,"increment":1}}
Alumasc
From £127.52
£355.09
-64%
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{"id":53396418003275,"title":"75 x 75mm \/ Primed (Top Coat Required)","option1":"75 x 75mm","option2":"Primed (Top Coat Required)","option3":null,"sku":"P33\/SH\/R","requires_shipping":true,"taxable":true,"featured_image":null,"available":true,"name":"Alumasc Apex Heritage - Cast Iron Square Right Hand Shoes (Without Ears) - 75 x 75mm \/ Primed (Top Coat Required)","public_title":"75 x 75mm \/ Primed (Top Coat Required)","options":["75 x 75mm","Primed (Top Coat Required)"],"price":12560,"weight":0,"compare_at_price":34976,"inventory_management":null,"barcode":null,"requires_selling_plan":false,"selling_plan_allocations":[],"quantity_rule":{"min":1,"max":null,"increment":1}}
Alumasc
From £125.60
£349.76
-64%
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{"id":53396417282379,"title":"75 x 75mm \/ Primed (Top Coat Required)","option1":"75 x 75mm","option2":"Primed (Top Coat Required)","option3":null,"sku":"P33\/SH\/L","requires_shipping":true,"taxable":true,"featured_image":null,"available":true,"name":"Alumasc Apex Heritage - Cast Iron Square Left Hand Shoes (Without Ears) - 75 x 75mm \/ Primed (Top Coat Required)","public_title":"75 x 75mm \/ Primed (Top Coat Required)","options":["75 x 75mm","Primed (Top Coat Required)"],"price":12560,"weight":0,"compare_at_price":34976,"inventory_management":null,"barcode":null,"requires_selling_plan":false,"selling_plan_allocations":[],"quantity_rule":{"min":1,"max":null,"increment":1}}
Alumasc
From £125.60
£349.76
-64%
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{"id":53396398604619,"title":"63mm \/ Primed (Top Coat Required)","option1":"63mm","option2":"Primed (Top Coat Required)","option3":null,"sku":"HH\/003\/25","requires_shipping":true,"taxable":true,"featured_image":null,"available":true,"name":"Alumasc Apex Heritage - Cast Iron Large Rectangular Rainwater Head - 63mm \/ Primed (Top Coat Required)","public_title":"63mm \/ Primed (Top Coat Required)","options":["63mm","Primed (Top Coat Required)"],"price":12462,"weight":0,"compare_at_price":34702,"inventory_management":null,"barcode":null,"requires_selling_plan":false,"selling_plan_allocations":[],"quantity_rule":{"min":1,"max":null,"increment":1}}
Alumasc
From £124.62
£347.02
-64%
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{"id":53396419641675,"title":"75 x 75mm \/ Primed (Top Coat Required)","option1":"75 x 75mm","option2":"Primed (Top Coat Required)","option3":null,"sku":"HH\/003\/33","requires_shipping":true,"taxable":true,"featured_image":null,"available":true,"name":"Alumasc Apex Heritage - Cast Iron Large Rectangular Hopper - 75 x 75mm \/ Primed (Top Coat Required)","public_title":"75 x 75mm \/ Primed (Top Coat Required)","options":["75 x 75mm","Primed (Top Coat Required)"],"price":12462,"weight":0,"compare_at_price":34702,"inventory_management":null,"barcode":null,"requires_selling_plan":false,"selling_plan_allocations":[],"quantity_rule":{"min":1,"max":null,"increment":1}}
Alumasc
From £124.62
£347.02
-64%
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{"id":53396416921931,"title":"75 x 75mm \/ Primed (Top Coat Required)","option1":"75 x 75mm","option2":"Primed (Top Coat Required)","option3":null,"sku":"P33\/SH\/AE","requires_shipping":true,"taxable":true,"featured_image":null,"available":true,"name":"Alumasc Apex Heritage - Cast Iron Square Anti Splash Shoes (With Ears) - 75 x 75mm \/ Primed (Top Coat Required)","public_title":"75 x 75mm \/ Primed (Top Coat Required)","options":["75 x 75mm","Primed (Top Coat Required)"],"price":13473,"weight":0,"compare_at_price":37517,"inventory_management":null,"barcode":null,"requires_selling_plan":false,"selling_plan_allocations":[],"quantity_rule":{"min":1,"max":null,"increment":1}}
Alumasc
From £117.78
£327.96
-64%
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{"id":53396416594251,"title":"75 x 75mm \/ Primed (Top Coat Required)","option1":"75 x 75mm","option2":"Primed (Top Coat Required)","option3":null,"sku":"P33\/SH\/A","requires_shipping":true,"taxable":true,"featured_image":null,"available":true,"name":"Alumasc Apex Heritage - Cast Iron Square Anti Splash Shoes (Without Ears) - 75 x 75mm \/ Primed (Top Coat Required)","public_title":"75 x 75mm \/ Primed (Top Coat Required)","options":["75 x 75mm","Primed (Top Coat Required)"],"price":13328,"weight":0,"compare_at_price":37112,"inventory_management":null,"barcode":null,"requires_selling_plan":false,"selling_plan_allocations":[],"quantity_rule":{"min":1,"max":null,"increment":1}}
Alumasc
From £116.27
£323.80
-64%
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{"id":53396414759243,"title":"75 x 75mm \/ 75mm \/ Primed (Top Coat Required)","option1":"75 x 75mm","option2":"75mm","option3":"Primed (Top Coat Required)","sku":"P33\/OF\/03P","requires_shipping":true,"taxable":true,"featured_image":null,"available":true,"name":"Alumasc Apex Heritage - Cast Iron Square Plinth Offsets - 75 x 75mm \/ 75mm \/ Primed (Top Coat Required)","public_title":"75 x 75mm \/ 75mm \/ Primed (Top Coat Required)","options":["75 x 75mm","75mm","Primed (Top Coat Required)"],"price":11957,"weight":0,"compare_at_price":33293,"inventory_management":null,"barcode":null,"requires_selling_plan":false,"selling_plan_allocations":[],"quantity_rule":{"min":1,"max":null,"increment":1}}
Alumasc
From £113.94
£305.27
-63%
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{"id":53396419936587,"title":"75 x 75mm \/ Primed (Top Coat Required)","option1":"75 x 75mm","option2":"Primed (Top Coat Required)","option3":null,"sku":"P33\/C","requires_shipping":true,"taxable":true,"featured_image":null,"available":true,"name":"Alumasc Apex Heritage - Cast Iron Square to Round Adapter - 75 x 75mm \/ Primed (Top Coat Required)","public_title":"75 x 75mm \/ Primed (Top Coat Required)","options":["75 x 75mm","Primed (Top Coat Required)"],"price":10808,"weight":0,"compare_at_price":30095,"inventory_management":null,"barcode":null,"requires_selling_plan":false,"selling_plan_allocations":[],"quantity_rule":{"min":1,"max":null,"increment":1}}
Alumasc
From £102.58
£285.65
-64%
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{"id":53396416168267,"title":"75 x 75mm \/ Primed (Top Coat Required)","option1":"75 x 75mm","option2":"Primed (Top Coat Required)","option3":null,"sku":"P33\/SH\/E","requires_shipping":true,"taxable":true,"featured_image":null,"available":true,"name":"Alumasc Apex Heritage - Cast Iron Square Shoes (With Ears) - 75 x 75mm \/ Primed (Top Coat Required)","public_title":"75 x 75mm \/ Primed (Top Coat Required)","options":["75 x 75mm","Primed (Top Coat Required)"],"price":10714,"weight":0,"compare_at_price":29834,"inventory_management":null,"barcode":null,"requires_selling_plan":false,"selling_plan_allocations":[],"quantity_rule":{"min":1,"max":null,"increment":1}}
Alumasc
From £102.19
£284.56
-64%
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{"id":53396412432715,"title":"75 x 75mm \/ 75mm \/ Primed (Top Coat Required)","option1":"75 x 75mm","option2":"75mm","option3":"Primed (Top Coat Required)","sku":"P33\/OF\/03R","requires_shipping":true,"taxable":true,"featured_image":null,"available":true,"name":"Alumasc Apex Heritage - Cast Iron Square Right Handed Offsets - 75 x 75mm \/ 75mm \/ Primed (Top Coat Required)","public_title":"75 x 75mm \/ 75mm \/ Primed (Top Coat Required)","options":["75 x 75mm","75mm","Primed (Top Coat Required)"],"price":10166,"weight":0,"compare_at_price":28307,"inventory_management":null,"barcode":null,"requires_selling_plan":false,"selling_plan_allocations":[],"quantity_rule":{"min":1,"max":null,"increment":1}}
Alumasc
From £101.66
£283.07
-64%
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{"id":53396410106187,"title":"75 x 75mm \/ 75mm \/ Primed (Top Coat Required)","option1":"75 x 75mm","option2":"75mm","option3":"Primed (Top Coat Required)","sku":"P33\/OF\/03L","requires_shipping":true,"taxable":true,"featured_image":null,"available":true,"name":"Alumasc Apex Heritage - Cast Iron Square Left Handed Offsets - 75 x 75mm \/ 75mm \/ Primed (Top Coat Required)","public_title":"75 x 75mm \/ 75mm \/ Primed (Top Coat Required)","options":["75 x 75mm","75mm","Primed (Top Coat Required)"],"price":10166,"weight":0,"compare_at_price":28307,"inventory_management":null,"barcode":null,"requires_selling_plan":false,"selling_plan_allocations":[],"quantity_rule":{"min":1,"max":null,"increment":1}}
Alumasc
From £101.66
£283.07
-64%
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{"id":53396415775051,"title":"75 x 75mm \/ Primed (Top Coat Required)","option1":"75 x 75mm","option2":"Primed (Top Coat Required)","option3":null,"sku":"P33\/SH","requires_shipping":true,"taxable":true,"featured_image":null,"available":true,"name":"Alumasc Apex Heritage - Cast Iron Square Shoes (Without Ears) - 75 x 75mm \/ Primed (Top Coat Required)","public_title":"75 x 75mm \/ Primed (Top Coat Required)","options":["75 x 75mm","Primed (Top Coat Required)"],"price":10568,"weight":0,"compare_at_price":29428,"inventory_management":null,"barcode":null,"requires_selling_plan":false,"selling_plan_allocations":[],"quantity_rule":{"min":1,"max":null,"increment":1}}
Alumasc
From £100.78
£280.63
-64%
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{"id":53396407681355,"title":"75 x 75mm \/ 75mm \/ Primed (Top Coat Required)","option1":"75 x 75mm","option2":"75mm","option3":"Primed (Top Coat Required)","sku":"P33\/OF\/03","requires_shipping":true,"taxable":true,"featured_image":null,"available":true,"name":"Alumasc Apex Heritage - Cast Iron Square Offsets - 75 x 75mm \/ 75mm \/ Primed (Top Coat Required)","public_title":"75 x 75mm \/ 75mm \/ Primed (Top Coat Required)","options":["75 x 75mm","75mm","Primed (Top Coat Required)"],"price":10166,"weight":0,"compare_at_price":28307,"inventory_management":null,"barcode":null,"requires_selling_plan":false,"selling_plan_allocations":[],"quantity_rule":{"min":1,"max":null,"increment":1}}
Alumasc
From £96.91
£269.86
-64%
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{"id":53396403781963,"title":"75 x 75mm \/ 92.5° \/ Primed (Top Coat Required)","option1":"75 x 75mm","option2":"92.5°","option3":"Primed (Top Coat Required)","sku":"P33\/B\/92R","requires_shipping":true,"taxable":true,"featured_image":null,"available":true,"name":"Alumasc Apex Heritage - Cast Iron Square Right Bends - 75 x 75mm \/ 92.5° \/ Primed (Top Coat Required)","public_title":"75 x 75mm \/ 92.5° \/ Primed (Top Coat Required)","options":["75 x 75mm","92.5°","Primed (Top Coat Required)"],"price":8611,"weight":0,"compare_at_price":23978,"inventory_management":null,"barcode":null,"requires_selling_plan":false,"selling_plan_allocations":[],"quantity_rule":{"min":1,"max":null,"increment":1}}
Alumasc
From £86.11
£228.61
-62%
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{"id":53396402766155,"title":"75 x 75mm \/ 92.5° \/ Primed (Top Coat Required)","option1":"75 x 75mm","option2":"92.5°","option3":"Primed (Top Coat Required)","sku":"P33\/B\/92L","requires_shipping":true,"taxable":true,"featured_image":null,"available":true,"name":"Alumasc Apex Heritage - Cast Iron Square Left Bends - 75 x 75mm \/ 92.5° \/ Primed (Top Coat Required)","public_title":"75 x 75mm \/ 92.5° \/ Primed (Top Coat Required)","options":["75 x 75mm","92.5°","Primed (Top Coat Required)"],"price":8611,"weight":0,"compare_at_price":23978,"inventory_management":null,"barcode":null,"requires_selling_plan":false,"selling_plan_allocations":[],"quantity_rule":{"min":1,"max":null,"increment":1}}
Alumasc
From £86.11
£228.61
-62%
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{"id":53396401553739,"title":"75 x 75mm \/ 92.5° \/ Primed (Top Coat Required)","option1":"75 x 75mm","option2":"92.5°","option3":"Primed (Top Coat Required)","sku":"P33\/B\/92F","requires_shipping":true,"taxable":true,"featured_image":null,"available":true,"name":"Alumasc Apex Heritage - Cast Iron Square Forward Bends - 75 x 75mm \/ 92.5° \/ Primed (Top Coat Required)","public_title":"75 x 75mm \/ 92.5° \/ Primed (Top Coat Required)","options":["75 x 75mm","92.5°","Primed (Top Coat Required)"],"price":8611,"weight":0,"compare_at_price":23978,"inventory_management":null,"barcode":null,"requires_selling_plan":false,"selling_plan_allocations":[],"quantity_rule":{"min":1,"max":null,"increment":1}}
Alumasc
From £82.10
£228.61
-64%
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In stock
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{"id":53396400505163,"title":"75 x 75mm \/ 92.5° \/ Primed (Top Coat Required)","option1":"75 x 75mm","option2":"92.5°","option3":"Primed (Top Coat Required)","sku":"P33\/B\/92B","requires_shipping":true,"taxable":true,"featured_image":null,"available":true,"name":"Alumasc Apex Heritage - Cast Iron Square Backward Bends - 75 x 75mm \/ 92.5° \/ Primed (Top Coat Required)","public_title":"75 x 75mm \/ 92.5° \/ Primed (Top Coat Required)","options":["75 x 75mm","92.5°","Primed (Top Coat Required)"],"price":8611,"weight":0,"compare_at_price":23978,"inventory_management":null,"barcode":null,"requires_selling_plan":false,"selling_plan_allocations":[],"quantity_rule":{"min":1,"max":null,"increment":1}}
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ALL ALUMASC CAST IRON DOWNPIPES · COMMON QUESTIONS
Something not answered here? The technical desk takes calls on 0330 0539354What fixing pattern should I allow for on downpipes?+
Fix at every socketed joint and at intermediate centres in line with manufacturer guidance. Use eared sockets and appropriate masonry anchors for solid backgrounds. This keeps runs aligned and resists wind and impact loads.
What common accessories speed up maintenance on site?+
Access pipes, rodding eyes, shoes, offsets and branches are standard, allowing straightforward rodding from ground level and clean alignment from outlets to gullies.
Are eared and uneared options both available?+
Yes. Use eared sockets for direct wall fixing and uneared with separate clips where detailing or substrates require it.
What standards and finishes do Alumasc cast iron rainwater products comply with?+
All Alumasc Apex Heritage cast iron gutters, downpipes and fittings are manufactured to BS 460:2002 for cast iron rainwater goods and supplied either factory primed or with a high-performance two-pack painted finish. Factory finishes are certified for long-term protection and colour consistency.
What are the typical lengths, bracket centres and falls for installation?+
Most gutters and downpipes are supplied in 1.83 m (6 ft) lengths. Gutters are typically bracketed at 915 mm centres with extra brackets either side of joints, outlets and angles, and set to a fall of roughly 1:600 to 1:350.
How are joints made and sealed on site?+
Traditional spigot-into-socket joints are made using a low-modulus silicone or rubberised bitumen mastic, then bolted through the pre-drilled joint holes using corrosion-resistant bolts and washers.
What about durability, repainting and lifecycle?+
Cast iron is extremely strong, vandal-resistant and dimensionally stable. Life expectancy is typically 40+ years with correct installation and periodic maintenance. Factory-painted finishes minimise site time; primed goods can be site painted to the required scheme.
Are Alumasc cast iron systems suitable for heritage and sustainable projects?+
Yes. They are widely used on listed and conservation properties because they replicate traditional profiles and details, and cast iron is 100% recyclable at end of life.
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