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4 x 3 inch Rectangular Cast Iron Downpipes

Our Britannia rectangular rainwater pipes are available in a transit primer or pre-painted finish and are supplied with a complete range of fittings such as bends, branches, offsets and various brackets

Composition and Manufacture

  • Traditional Sand Cast Iron
  • Manufactured to BS460:1964
  • Bespoke fittings are available on request
  • Complies with all Listed Building, Heritage and Conservation requirements
  • Supplied Transit Primed or Factory applied wet paint finish in semi-gloss black or to a specific RAL/BS colour on request
  • Life expectancy of over 100 years

Rectangular Cast Iron Downpipes

4 inch x 3 inch rectangular cast iron downpipe x 1.83m eared
4 Inch x 3 Inch Rectangular Cast Iron Downpipe x 1.83m Eared
ARP Britannia 100mm (4 Inch) x 75mm (3 Inch) Rectangular Cast Iron Downpipe with Ears x 1.83m (6 ft) BI/P43/6FT/E available in a Transit Primer or Painted Finish
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Ex Vat: £237.06
(Inc £284.47)
4 inch x 3 inch rectangular cast iron downpipe offset bend 12 inch projection
4 Inch x 3 Inch Rectangular Cast Iron Downpipe Offset Bend 12 Inch Projection
ARP Britannia 100mm (4 Inch) x 75mm (3 Inch) Rectangular Cast Iron Downpipe Swan Neck Bend 12 Inch Projection 120 Degrees BI/P43/OS/12 available in a Transit Primer or Painted Finish
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Ex Vat: £165.85
(Inc £199.02)
4 inch x 3 inch rectangular cast iron downpipe plinth offset 2.5 inch projection
4 Inch x 3 Inch Rectangular Cast Iron Downpipe Plinth Offset 2.5 Inch Projection
ARP Britannia 100mm (4 Inch) x 75mm (3 Inch) Rectangular Cast Iron Downpipe Plinth Offset 2.5 Inch Projection without Ears BI/P43/OS/02P available in a Transit Primer or Painted Finish
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Ex Vat: £128.66
(Inc £154.39)
4 inch x 3 inch rectangular cast iron downpipe eared plinth offset 2.5 inch projection
4 Inch x 3 Inch Rectangular Cast Iron Downpipe Eared Plinth Offset 2.5 Inch Proj
ARP Britannia 100mm (4 Inch) x 75mm (3 Inch) Rectangular Cast Iron Downpipe Plinth Offset 2.5 Inch Projection with Ears BI/P43/OS/02P/E available in a Transit Primer or Painted Finish
More Info
Ex Vat: £128.66
(Inc £154.39)
4 inch x 3 inch rectangular cast iron downpipe plinth offset 3 inch projection
4 Inch x 3 Inch Rectangular Cast Iron Downpipe Plinth Offset 3 Inch Projection
ARP Britannia 100mm (4 Inch) x 75mm (3 Inch) Rectangular Cast Iron Downpipe Plinth Offset 3 Inch Projection without Ears BI/P43/OS/03P available in a Transit Primer or Painted Finish
More Info
Ex Vat: £128.66
(Inc £154.39)
4 inch x 3 inch rectangular cast iron downpipe eared plinth offset 3 inch projection
4 Inch x 3 Inch Rectangular Cast Iron Downpipe Eared Plinth Offset 3 Inch Proj
ARP Britannia 100mm (4 Inch) x 75mm (3 Inch) Rectangular Cast Iron Downpipe Plinth Offset 3 Inch Projection with Ears BI/P43/OS/03P/E available in a Transit Primer or Painted Finish
More Info
Ex Vat: £128.66
(Inc £154.39)
4 inch x 3 inch rectangular cast iron downpipe branch 135 degrees left hand
4 Inch x 3 Inch Rectangular Cast Iron Downpipe Branch 135 Degrees Left Hand
ARP Britannia 100mm (4 Inch) x 75mm (3 Inch) Rectangular Cast Iron Downpipe Branch 135 Degrees Left Hand Projection BI/P43/BR/135LH available in a Transit Primer or Painted Finish
More Info
Ex Vat: £195.39
(Inc £234.47)
4 inch x 3 inch rectangular cast iron downpipe branch 135 degrees right hand
4 Inch x 3 Inch Rectangular Cast Iron Downpipe Branch 135 Degrees Right Hand
ARP Britannia 100mm (4 Inch) x 75mm (3 Inch) Rectangular Cast Iron Downpipe Branch 135 Degrees Right Hand Projection BI/P43/BR/135RH available in a Transit Primer or Painted Finish
More Info
Ex Vat: £195.39
(Inc £234.47)
4 inch x 3 inch rectangular cast iron downpipe branch 92.5 degrees left hand
4 Inch x 3 Inch Rectangular Cast Iron Downpipe Branch 92.5 Degrees Left Hand
ARP Britannia 100mm (4 Inch) x 75mm (3 Inch) Rectangular Cast Iron Downpipe Branch 92.5 Degrees Left Hand Projection BI/P43/BR/92LH available in a Transit Primer or Painted Finish
More Info
Ex Vat: £195.39
(Inc £234.47)
4 inch x 3 inch rectangular cast iron downpipe offset bend 9 inch projection
4 Inch x 3 Inch Rectangular Cast Iron Downpipe Offset Bend 9 Inch Projection
ARP Britannia 100mm (4 Inch) x 75mm (3 Inch) Rectangular Cast Iron Downpipe Swan Neck Bend 9 Inch Projection 120 Degrees BI/P43/OS/09 available in a Transit Primer or Painted Finish
More Info
Ex Vat: £154.70
(Inc £185.64)
4 inch x 3 inch rectangular cast iron downpipe offset bend 6 inch projection
4 Inch x 3 Inch Rectangular Cast Iron Downpipe Offset Bend 6 Inch Projection
ARP Britannia 100mm (4 Inch) x 75mm (3 Inch) Rectangular Cast Iron Downpipe Swan Neck Bend 6 Inch Projection 120 Degrees BI/P43/OS/06 available in a Transit Primer or Painted Finish
More Info
Ex Vat: £117.79
(Inc £141.35)
4 inch x 3 inch rectangular cast iron downpipe shoe eared
4 Inch x 3 Inch Rectangular Cast Iron Downpipe Shoe Eared
ARP Britannia 100mm (4 Inch) x 75mm (3 Inch) Rectangular Cast Iron Downpipe Shoe with Ears BI/P43/SH/E available in a Transit Primer or Painted Finish
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Ex Vat: £115.38
(Inc £138.45)
4 inch x 3 inch rectangular cast iron downpipe x 1.83m non eared
4 Inch x 3 Inch Rectangular Cast Iron Downpipe x 1.83m Non Eared
ARP Britannia 100mm (4 Inch) x 75mm (3 Inch) Rectangular Cast Iron Downpipe without Ears x 1.83m (6 ft) BI/P43/6FT/NE available in a Transit Primer or Painted Finish
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Ex Vat: £232.82
(Inc £279.38)
4 inch x 3 inch rectangular cast iron downpipe x 3 ft double collar eared
4 Inch x 3 Inch Rectangular Cast Iron Downpipe x 3 ft Double Collar Eared
ARP Britannia 100mm (4 Inch) x 75mm (3 Inch) Rectangular Cast Iron Double Collared Downpipe with Ears x 3 ft BI/P43/DC/3FT/E available in a Transit Primer or Painted Finish
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Ex Vat: £172.18
(Inc £206.62)
4 inch x 3 inch rectangular cast iron downpipe x 3 ft double collar non eared
4 Inch x 3 Inch Rectangular Cast Iron Downpipe x 3 ft Double Collar Non Eared
ARP Britannia 100mm (4 Inch) x 75mm (3 Inch) Rectangular Cast Iron Double Collared Downpipe without Ears x 3 ft BI/P43/DC/3FT/NE available in a Transit Primer or Painted Finish
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Ex Vat: £170.19
(Inc £204.23)
4 inch x 3 inch rectangular cast iron downpipe clip earbelt standard
4 Inch x 3 Inch Rectangular Cast Iron Downpipe Clip Earbelt Standard
ARP Britannia 100mm (4 Inch) x 75mm (3 Inch) Rectangular Cast Iron Downpipe Clip Earbelt Standard BI/P43/EB/ST available in a Transit Primer or Painted Finish
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Ex Vat: £24.68
(Inc £29.62)
4 inch x 3 inch rectangular cast iron downpipe bend 135 degrees right hand
4 Inch x 3 Inch Rectangular Cast Iron Downpipe Bend 135 Degrees Right Hand
ARP Britannia 100mm (4 Inch) x 75mm (3 Inch) Rectangular Cast Iron Downpipe Bend 135 Degrees Right Hand Projection BI/P43/B/135RH available in a Transit Primer or Painted Finish
More Info
Ex Vat: £143.96
(Inc £172.75)
4 inch x 3 inch rectangular cast iron downpipe bend 135 degrees left hand
4 Inch x 3 Inch Rectangular Cast Iron Downpipe Bend 135 Degrees Left Hand
ARP Britannia 100mm (4 Inch) x 75mm (3 Inch) Rectangular Cast Iron Downpipe Bend 135 Degrees Left Hand Projection BI/P43/B/135LH available in a Transit Primer or Painted Finish
More Info
Ex Vat: £143.96
(Inc £172.75)
4 inch x 3 inch rectangular cast iron downpipe bend 92.5 degrees left hand
4 Inch x 3 Inch Rectangular Cast Iron Downpipe Bend 92.5 Degrees Left Hand
ARP Britannia 100mm (4 Inch) x 75mm (3 Inch) Rectangular Cast Iron Downpipe Bend 92.5 Degrees Left Hand Projection BI/P43/B/92LH available in a Transit Primer or Painted Finish
More Info
Ex Vat: £143.96
(Inc £172.75)
4 inch x 3 inch rectangular cast iron downpipe bend 92.5 degrees right hand
4 Inch x 3 Inch Rectangular Cast Iron Downpipe Bend 92.5 Degrees Right Hand
ARP Britannia 100mm (4 Inch) x 75mm (3 Inch) Rectangular Cast Iron Downpipe Bend 92.5 Degrees Right Hand Projection BI/P43/B/92RH available in a Transit Primer or Painted Finish
More Info
Ex Vat: £143.96
(Inc £172.75)
4 inch x 3 inch rectangular cast iron downpipe branch 92.5 degrees right hand
4 Inch x 3 Inch Rectangular Cast Iron Downpipe Branch 92.5 Degrees Right Hand
ARP Britannia 100mm (4 Inch) x 75mm (3 Inch) Rectangular Cast Iron Downpipe Branch 92.5 Degrees Right Hand Projection BI/P43/BR/92RH available in a Transit Primer or Painted Finish
More Info
Ex Vat: £195.39
(Inc £234.47)