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    • Cast Iron Radiator Adaptors Image
    • Cast Iron Radiator Adaptors Image
    • Cast Iron Radiator Adaptors Image
    • Cast Iron Radiator Adaptors Image

    Cast Iron Radiator Adaptors

    Top Quality, Low Cost Adaptors

    We stock a wide range of adaptors and reducers. These products give you the freedom to connect your Cast Iron Radiator to your heating system, These adaptors can also be used to connect each part of your heating system (pipes, valves and radiators).

      • 505 Microbore Adaptors: These are used to make a 15mm inlet smaller to correspond with 10mm or 8mm pipework.
      • 506 3/4" to 1/2" Adaptors: This adaptor is used to decrease the size of a 3/4" connection to a 1/2" connection to correspond with 1/2" pipe work. These are available as a Single or a Pair.
      • 506 3/4" Couplers: These are used to increase the size of a valve outlet from a 1/2" outlet to a 3/4" outlet to fit a larger radiator outlet. These are available as a Single or a Pair.
      • 506 22mm Compression Adaptors: This adaptor is used to increase the size of a 15mm inlet to a inlet to suit the pipework.

    These adapters are available in a variety of finishes, allowing you to customise many of the valves we sell to suit your needs.

    If you need any advice please check our Buying Guide or call a member of our friendly Sales Team.

    All Products:

    • 34% off MSRP
      A-ADP-506-22-OEB - 506 Compression Adaptor 22mm Old English Brass

      506 Compression Adaptor 22mm - Old English Brass

      Brand: Radiator Valves 4uRange: AccessoryType: Radiator Valve Accessory > AdapterCompatible Ranges:Arlington / Alfriston / Chastleton / RuffordHeight (mm):39Width (mm):31Depth (mm):32Weight Product (kg):0.105Weight Boxed (kg):0.105Compression...
      A-ADP-506-22-OEB
      AntiquedBrassBrushed
      Next Working Day
      MSRP: £8.35
      Price: £5.45
      Save:£2.90

      (0)

    • A-ADP-505-8-B - 505 Microbore Adapter 15mm to 8mm

      505 Microbore Adaptor 15mm to 8mm

      Brand: Radiator Valves 4uRange: AccessoryType: Radiator Valve Accessory > AdapterHeight (mm):13Width (mm):18Depth (mm):18Weight Product (kg):0.01Weight Boxed (kg):0.01Style:Brass reducing adapterFitting Size:Designed to fit 15mm valves and reduce down to...
      A-ADP-505-8-B
      BrassPolished
      Next Working Day
      MSRP: £1.70
      Price: £1.44
      Save:£0.26

      (0)

    • 34% off MSRP
      A-ADP-506-22-PEW - 506 Compression Adaptor 22mm Pewter

      506 Compression Adaptor 22mm - Pewter

      Brand: Radiator Valves 4uRange: AccessoryType: Radiator Valve Accessory > AdapterCompatible Ranges:Arlington / Alfriston / Chastleton / RuffordHeight (mm):39Width (mm):31Depth (mm):32Weight Product (kg):0.105Weight Boxed (kg):0.105Compression...
      A-ADP-506-22-PEW
      AnthraciteAntiquedGreyPewter
      Next Working Day
      MSRP: £8.35
      Price: £5.45
      Save:£2.90

      (0)

    • 51% off MSRP
      A-ADP-505-10-B - 505 Microbore Adapter 15mm to 10mm

      505 Microbore Adaptor 15mm to 10mm

      Brand: Radiator Valves 4uRange: AccessoryType: Radiator Valve Accessory > AdapterHeight (mm):10Width (mm):18Depth (mm):18Weight Product (kg):0.01Weight Boxed (kg):0.01Style:Brass reducing adapterFitting Size:Designed to fit 15mm valves and reduce down to...
      A-ADP-505-10-B
      BrassPolished
      Next Working Day
      MSRP: £2.66
      Price: £1.30
      Save:£1.36

      (0)

    • 34% off MSRP
      A-ADP-506-34-OEB - 506 3/4 inch Coupler Adaptor Old English Brass

      506 3/4 inch Coupler Adaptor - Old English Brass

      Brand: Radiator Valves 4uRange: AccessoryType: Radiator Valve Accessory > AdapterCompatible Ranges:Arlington / Alfriston / Chastleton / RuffordHeight (mm):33Width (mm):30Depth (mm):30Weight Product (kg):0.07Weight Boxed (kg):0.07Radiator Coupler:¾”...
      A-ADP-506-34-OEB
      AntiquedBrassBrushed
      Next Working Day
      MSRP: £7.60
      Price: £4.96
      Save:£2.64

      (0)

    • 29% off MSRP
      A-ADP-506-22-AB - 506 Compression Adaptor 22mm Antique Brass

      506 Compression Adaptor 22mm - Antique Brass

      Brand: Radiator Valves 4uRange: AccessoryType: Radiator Valve Accessory > AdapterCompatible Ranges:Arlington / Alfriston / Chastleton / RuffordHeight (mm):39Width (mm):31Depth (mm):32Weight Product (kg):0.105Weight Boxed (kg):0.105Compression...
      A-ADP-506-22-AB
      AntiquedBrassBrushed
      Next Working Day
      MSRP: £7.75
      Price: £5.45
      Save:£2.30

      (0)

    • 29% off MSRP
      A-ADP-506-34-SN - 506 3/4 inch Coupler Adaptor Satin Nickel

      506 3/4 inch Coupler Adaptor - Satin Nickel

      Brand: Radiator Valves 4uRange: AccessoryType: Radiator Valve Accessory > AdapterCompatible Ranges:Arlington / Alfriston / Chastleton / RuffordHeight (mm):33Width (mm):30Depth (mm):30Weight Product (kg):0.07Weight Boxed (kg):0.07Radiator Coupler:¾”...
      A-ADP-506-34-SN
      BrushedGreyNickelSatin Nickel
      Next Working Day
      MSRP: £7.00
      Price: £4.96
      Save:£2.04

      (0)

    • 29% off MSRP
      A-ADP-506-34-AB - 506 3/4 inch Coupler Adaptor Antique Brass

      506 3/4 inch Coupler Adaptor - Antique Brass

      Brand: Radiator Valves 4uRange: AccessoryType: Radiator Valve Accessory > AdapterCompatible Ranges:Arlington / Alfriston / Chastleton / RuffordHeight (mm):33Width (mm):30Depth (mm):30Weight Product (kg):0.07Weight Boxed (kg):0.07Radiator Coupler:¾”...
      A-ADP-506-34-AB
      AntiquedBrassBrushed
      Next Working Day
      MSRP: £7.00
      Price: £4.96
      Save:£2.04

      (0)

    • 21% off MSRP
      A-ADP-506-X2-C - 506 3/4 inch to 1/2 inch Adaptors Chrome (Pair)

      506 3/4 inch to 1/2 inch Adaptors - Chrome (Pair)

      Brand: Radiator Valves 4uRange: AccessoryType: Radiator Valve Accessory > AdapterHeight (mm):13Width (mm):31Depth (mm):27Weight Product (kg):0.04Weight Boxed (kg):0.04Style:Pair of ¾” to ½” reducersThreaded Inlet(s):½” BSPP - FemaleInternal Thread...
      A-ADP-506-X2-C
      Chrome
      Next Working Day
      MSRP: £11.40
      Price: £8.93
      Save:£2.47

      (0)

    • 22% off MSRP
      A-ADP-506-B - 506 3/4 inch to 1/2 inch Adapter Brass

      506 3/4 inch to 1/2 inch Adaptor - Brass

      Brand: Radiator Valves 4uRange: AccessoryType: Radiator Valve Accessory > AdapterHeight (mm):13Width (mm):31Depth (mm):27Weight Product (kg):0.02Weight Boxed (kg):0.02Style:Single ¾” to ½” reducerThreaded Inlet(s):½” BSPP - FemaleInternal Thread...
      A-ADP-506-B
      BrassPolished
      Next Working Day
      MSRP: £5.76
      Price: £4.46
      Save:£1.30

      (0)

    • 21% off MSRP
      A-ADP-506-C - 506 3/4 inch to 1/2 inch Adapter Chrome

      506 3/4 inch to 1/2 inch Adaptor - Chrome

      Brand: Radiator Valves 4uRange: AccessoryType: Radiator Valve Accessory > AdapterHeight (mm):13Width (mm):31Depth (mm):27Weight Product (kg):0.02Weight Boxed (kg):0.02Style:Single ¾” to ½” reducerThreaded Inlet(s):½” BSPP - FemaleInternal Thread...
      A-ADP-506-C
      Chrome
      Next Working Day
      MSRP: £5.70
      Price: £4.46
      Save:£1.24

      (0)

    • 22% off MSRP
      A-ADP-506-X2-B - 506 3/4 inch to 1/2 inch Adaptors Brass (Pair)

      506 3/4 inch to 1/2 inch Adaptors - Brass (Pair)

      Brand: Radiator Valves 4uRange: AccessoryType: Radiator Valve Accessory > AdapterHeight (mm):13Width (mm):31Depth (mm):27Weight Product (kg):0.04Weight Boxed (kg):0.04Style:Pair of ¾” to ½” reducersThreaded Inlet(s):½” BSPP - FemaleInternal Thread...
      A-ADP-506-X2-B
      BrassPolished
      Next Working Day
      MSRP: £11.52
      Price: £8.93
      Save:£2.59

      (0)

    • 29% off MSRP
      A-ADP-506-22-SN - 506 Compression Adaptor 22mm Satin Nickel

      506 Compression Adaptor 22mm - Satin Nickel

      Brand: Radiator Valves 4uRange: AccessoryType: Radiator Valve Accessory > AdapterCompatible Ranges:Arlington / Alfriston / Chastleton / RuffordHeight (mm):39Width (mm):31Depth (mm):32Weight Product (kg):0.105Weight Boxed (kg):0.105Compression...
      A-ADP-506-22-SN
      BrushedGreyNickelSatin Nickel
      Next Working Day
      MSRP: £7.75
      Price: £5.45
      Save:£2.30

      (0)

    • 29% off MSRP
      A-ADP-506-34-X2-SN - 506 3/4 inch Coupler Adaptors Satin Nickel (Pair)

      506 3/4 inch Coupler Adaptors - Satin Nickel (Pair)

      Brand: Radiator Valves 4uRange: AccessoryType: Radiator Valve Accessory > AdapterCompatible Ranges:Arlington / Alfriston / Chastleton / RuffordHeight (mm):33Width (mm):30Depth (mm):30Weight Product (kg):0.14Weight Boxed (kg):0.14Style:FixedRadiator...
      A-ADP-506-34-X2-SN
      BrushedGreyNickelSatin Nickel
      Next Working Day
      MSRP: £13.99
      Price: £9.91
      Save:£4.08

      (0)

    • 34% off MSRP
      A-ADP-506-34-PEW - 506 3/4 inch Coupler Adaptor Pewter

      506 3/4 inch Coupler Adaptor - Pewter

      Brand: Radiator Valves 4uRange: AccessoryType: Radiator Valve Accessory > AdapterCompatible Ranges:Arlington / Alfriston / Chastleton / RuffordHeight (mm):33Width (mm):30Depth (mm):30Weight Product (kg):0.07Weight Boxed (kg):0.07Radiator Coupler:¾”...
      A-ADP-506-34-PEW
      AnthraciteAntiquedGreyPewter
      Next Working Day
      MSRP: £7.60
      Price: £4.96
      Save:£2.64

      (0)

    • 34% off MSRP
      A-ADP-506-34-X2-PW - 506 3/4 inch Coupler Adaptors Light Pewter (Pair)

      506 3/4 inch Coupler Adaptors - Light Pewter (Pair)

      Brand: Radiator Valves 4uRange: AccessoryType: Radiator Valve Accessory > AdapterCompatible Ranges:Arlington / Alfriston / Chastleton / RuffordRadiator Coupler:¾” BSPT - MaleMaterial:BrassFinish:Light PewterWarranty:6 year...
      A-ADP-506-34-X2-PW
      AnthraciteAntiquedGreyPewter
      Next Working Day
      MSRP: £15.19
      Price: £9.91
      Save:£5.28

      (0)

    • 34% off MSRP
      A-ADP-506-34-X2-OEB - 506 3/4 inch Coupler Adaptors Old English Brass (Pair)

      506 3/4 inch Coupler Adaptors - Old English Brass (Pair)

      Brand: Radiator Valves 4uRange: AccessoryType: Radiator Valve Accessory > AdapterCompatible Ranges:Arlington / Alfriston / Chastleton / RuffordHeight (mm):33Width (mm):30Depth (mm):30Weight Product (kg):0.14Weight Boxed (kg):0.14Style:FixedRadiator...
      A-ADP-506-34-X2-OEB
      AntiquedBrassBrushed
      Next Working Day
      MSRP: £15.19
      Price: £9.91
      Save:£5.28

      (0)

    • 34% off MSRP
      A-ADP-506-22-C - 506 Compression Adapter 22mm Chrome

      506 Compression Adaptor 22mm - Chrome

      Brand: Radiator Valves 4uRange: AccessoryType: Radiator Valve Accessory > AdapterCompatible Ranges:Arlington / Alfriston / Chastleton / RuffordHeight (mm):39Width (mm):31Depth (mm):32Weight Product (kg):0.105Weight Boxed (kg):0.105Style:FixedCompression...
      A-ADP-506-22-C
      Chrome
      Next Working Day
      MSRP: £8.35
      Price: £5.45
      Save:£2.90

      (0)

    • 34% off MSRP
      A-ADP-506-22-X2-C - 506 Compression Adaptors 22mm Chrome (Pair)

      506 Compression Adaptors 22mm - Chrome (Pair)

      Brand: Radiator Valves 4uRange: AccessoryType: Radiator Valve Accessory > AdapterCompatible Ranges:Arlington / Alfriston / Chastleton / RuffordHeight (mm):39Width (mm):31Depth (mm):32Weight Product (kg):0.21Weight Boxed (kg):0.21Style:FixedCompression...
      A-ADP-506-22-X2-C
      Chrome
      Next Working Day
      MSRP: £16.70
      Price: £10.90
      Save:£5.80

      (0)

    • 34% off MSRP
      A-ADP-506-22-X2-PEW - 506 Compression Adaptors 22mm Pewter (Pair)

      506 Compression Adaptors 22mm - Pewter (Pair)

      Brand: Radiator Valves 4uRange: AccessoryType: Radiator Valve Accessory > AdapterCompatible Ranges:Arlington / Alfriston / Chastleton / RuffordHeight (mm):39Width (mm):31Depth (mm):32Weight Product (kg):0.21Weight Boxed (kg):0.21Style:FixedCompression...
      A-ADP-506-22-X2-PEW
      AnthraciteAntiquedGreyPewter
      Next Working Day
      MSRP: £16.70
      Price: £10.90
      Save:£5.80

      (0)

    • 29% off MSRP
      A-ADP-506-22-X2-SN - 506 Compression Adaptors 22mm Satin Nickel (Pair)

      506 Compression Adaptors 22mm - Satin Nickel (Pair)

      Brand: Radiator Valves 4uRange: AccessoryType: Radiator Valve Accessory > AdapterCompatible Ranges:Arlington / Alfriston / Chastleton / RuffordHeight (mm):39Width (mm):31Depth (mm):32Weight Product (kg):0.21Weight Boxed (kg):0.21Style:FixedCompression...
      A-ADP-506-22-X2-SN
      BrushedGreyNickelSatin Nickel
      Next Working Day
      MSRP: £15.50
      Price: £10.90
      Save:£4.60

      (0)

    • 51% off MSRP
      A-ADP-505-10-X2-B - 505 Microbore Adaptor 15mm to 10mm -Pair

      505 Microbore Adaptor 15mm to 10mm - Pair

      Brand: Radiator Valves 4uRange: AccessoryType: Radiator Valve Accessory > AdapterHeight (mm):10Width (mm):18Depth (mm):18Weight Product (kg):0.02Weight Boxed (kg):0.02Style:Brass reducing adapterFitting Size:Designed to fit 15mm valves and reduce down to...
      A-ADP-505-10-X2-B
      BrassPolished
      Next Working Day
      MSRP: £5.33
      Price: £2.59
      Save:£2.74

      (0)

    • 34% off MSRP
      A-ADP-506-34-C - 506 3/4 inch Coupler Adaptor Chrome

      506 3/4 inch Coupler Adaptor - Chrome

      Brand: Radiator Valves 4uRange: AdaptorsType: Radiator Valve Accessory > AdapterCompatible Ranges:Arlington / Alfriston / Chastleton / RuffordHeight (mm):33Width (mm):30Depth (mm):30Weight Product (kg):0.07Weight Boxed (kg):0.07Style:FixedRadiator...
      A-ADP-506-34-C
      Chrome
      Next Working Day
      MSRP: £7.60
      Price: £4.96
      Save:£2.64

      (0)

    • 34% off MSRP
      A-ADP-506-34-PW - 506 3/4 inch Coupler Adaptor Light Pewter

      506 3/4 inch Coupler Adaptor - Light Pewter

      Brand: Radiator Valves 4uRange: AccessoryType: Radiator Valve Accessory > AdapterCompatible Ranges:Arlington / Alfriston / Chastleton / RuffordWeight Product (kg):0.75Weight Boxed (kg):0.8Style:FixedRadiator Coupler:¾” BSPT -...
      A-ADP-506-34-PW
      AnthraciteAntiquedGreyPewter
      Next Working Day
      MSRP: £7.60
      Price: £4.96
      Save:£2.64

      (0)

    • 29% off MSRP
      A-ADP-506-34-UB - 506 3/4 inch Coupler Adaptor - Unlacquered Brass

      506 3/4 inch Coupler Adaptor - Unlacquered Brass

      Brand: Radiator Valves 4uRange: AccessoryType: Radiator Valve Accessory > AdapterCompatible Ranges:Arlington / Alfriston / Chastleton / RuffordHeight (mm):33Width (mm):30Depth (mm):30Weight Product (kg):0.075Weight Boxed (kg):0.075Radiator...
      A-ADP-506-34-UB
      33
      30
      AntiquedBrass
      Next Working Day
      MSRP: £7.00
      Price: £4.96
      Save:£2.04

      (0)