1. Products
  2. Backflow Parts (by manufacturer)
  3. Wilkins
  4. 4"
(Do not Assign) - Website List Price
Sort By: Name (A-Z)

4"

  • 350
  • 350A
  • 350ADA
  • 350AST
  • 350ASTDA
  • 350DA
  • 375/375A
  • 375ADA
  • 375AST
  • 375ASTDA
  • 375DA
  • 450
  • 450DA
  • 450ST
  • 450STDA
  • 475/475V
  • 475DA
  • 475ST/STV
  • 475STDA/STDAV
  • 550
  • 950
  • 950DA
  • 975
  • 975DA
1st (450STDA) or 2nd (475ST) Check Assembly
RK4-450STCK4
$ 727.00 $ 581.60 581.6 USD
1st Check Assembly
RK4-375ASTCK1
$ 806.00 $ 644.80 644.8000000000001 USD
1st Check Assembly
RK4-350ASTCK1
$ 727.00 $ 581.60 581.6 USD
1st Check Assembly
RK4-375CK1
$ 806.00 $ 644.80 644.8000000000001 USD
1st Check Assembly
RK4-350CK1
$ 727.00 $ 581.60 581.6 USD
1st Check Retainer
3509-14B
$ 116.00 $ 92.80 92.8 USD
1st or 2nd Check Retainer
3509ST-14B
$ 116.00 $ 92.80 92.8 USD
2nd Check Assembly
RK4-450STDACK2
$ 750.00 $ 600.00 600.0 USD
2nd Check Assembly
RK4-350ASTDACK2
$ 680.00 $ 544.00 544.0 USD
2nd Check Assembly
RK4-350ASTCK2
$ 680.00 $ 544.00 544.0 USD
2nd Check Assembly
RK4-350CK2
$ 680.00 $ 544.00 544.0 USD
2nd Check Retainer (Bag of 2)
3509-140x2
$ 311.04 $ 248.83 248.83 USD
2nd Check Retainer (Bag of 2)
3509ST-140x2
$ 311.04 $ 248.83 248.83 USD
9" Relief Valve Sensing Hose
3710-36
$ 114.00 114.0 USD
Complete Rubber Repair
RK4-950
$ 252.00 $ 201.60 201.6 USD
Complete Rubber Repair
RK4-550R
$ 386.00 $ 308.80 308.8 USD
Complete Rubber Repair
RK4-350
$ 225.00 $ 180.00 180.0 USD
Relief Valve Assembly
RK212-RV-ASSY
$ 950.00 $ 760.00 760.0 USD
Relief Valve Cover
RK212-RV-COVER
$ 340.00 $ 272.00 272.0 USD
Relief Valve Cover Plate
558-3AXL-010F
$ 172.00 $ 137.60 137.6 USD