• 1-½
  • 2
  • 2" to 1-½" BSP Black Iron Reducing Bush
  • 2" to ¾" BSP Black Iron Reducing Bush
  • 2" to ½" BSP Black Iron Reducing Bush
  • 1-½" to 1" BSP Black Iron Reducing Bush
  • 1-½" to ¾" BSP Black Iron Reducing Bush
  • 1-½" to ½" BSP Black Iron Reducing Bush
  • 1-½" to ¼" BSP Black Iron Reducing Bush
  • 1-¼" to 1" BSP Black Iron Reducing Bush
  • 1-¼" to ¾" BSP Black Iron Reducing Bush
  • 1-¼" to ½" BSP Black Iron Reducing Bush
  • 1" to ¾" BSP Black Iron Reducing Bush
  • 1" to ¼" BSP Black Iron Reducing Bush
  • 1" to ½" BSP Black Iron Reducing Bush
  • ½" to ¼" BSP Black Iron Reducing Bush
  • ¼" to ⅛" BSP Black Iron Reducing Bush

Black Iron Reducing Bush

£5.10£28.20

Additional information

Weight 0.4 kg
Dimensions 74 × 74 × 39 mm
Reducing Bush Size

½" BSP to ¼" BSP, ¼" BSP to ⅛" BSP, 1¼" BSP to ¾" BSP, 1½" BSP to ¾" BSP, 1¼" BSP to 1" BSP, 1½" BSP to ½" BSP, 1½" BSP to ¼" BSP, 1" BSP to ¾" BSP, 1½" BSP to 1" BSP, 1" BSP to ½" BSP, 1" BSP to ¼" BSP, 1¼" BSP to ½" BSP, 2" BSP to ¾" BSP, 2" BSP to 1-½" BSP, 2" BSP to ½" BSP

Construction Material

Black Iron

  • For adapting radiators to run on differently sized pipework
  • Useful when repairing or restoring older radiators
  • Available in 15 sizes
  • All right-handed threads
SKU: RBP-BIU

Technical Data

SKU A – Male Thread (BSP Nominal) B – Female Thread (BSP Nominal) C – Hex Width (mm) L – Radiator Clearance (mm)
RBP-BIU-2R-RHx1.5R-RH 2 1.5 65 10
RBP-BIU-2R-RHx0.75R-RH 2 0.75 65 10
RBP-BIU-2R-RHx0.5R-RH 2 0.5 65 10
RBP-BIU-1.5R-RHx1R-RH 1.5 1 51 10
RBP-BIU-1.5R-RHx0.75R-RH 1.5 0.75 40 8
RBP-BIU-1.5R-RHx0.5R-RH 1.5 0.5 50 10
RBP-BIU-1.5R-RHx0.25R-RH 1.5 0.25 52 10
RBP-BIU-1.25R-RHx1R-RH 1.25 1 45 9
RBP-BIU-1.25R-RHx0.75R-RH 1.25 0.75 47 8.5
RBP-BIU-1.25R-RHx0.5R-RH 1.25 0.5 46 8.5
RBP-BIU-1R-RHx0.75R-RH 1 0.75 37 8
RBP-BIU-1R-RHx0.5R-RH 1 0.5 38 7
RBP-BIU-1R-RHx0.25R-RH 1 0.25 35 8
RBP-BIU-0.5R-RHx0.25R-RH 0.5 0.25 23 6
RBP-BIU-0.25R-RHx0.125R-RH 0.25 0.125 17 7
Black Iron Reducing Bush - ABC Technical Drawing - SVG