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  2. Backflow Parts (by manufacturer)
  3. Wilkins
  4. 4"
(Do not Assign) - Website List Price
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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
Relief Valve Hose (Sensing Tube)
RK212-RV-HOSE
$ 49.00 49.0 USD
Relief Valve Internal Module (Assembled)
RK212-375VT
$ 425.52 $ 340.42 340.42 USD
Relief Valve O-Ring
032N
$ 13.00 13.0 USD
Relief Valve Pilot Tube
3709-360
$ 333.00 $ 266.40 266.4 USD
Relief Valve Rubber Repair
RK212-975R
$ 147.00 $ 117.60 117.60000000000001 USD
Relief Valve Rubber Repair
RK212-375R
$ 133.00 $ 106.40 106.4 USD
Relief Valve Rubber Repair w/ Spring
RK212-975
$ 205.00 $ 164.00 164.0 USD
Relief Valve Rubber Repair w/ Spring
RK212-375
$ 193.00 $ 154.40 154.4 USD
Relief Valve Seat
3707-18
$ 35.00 $ 28.00 28.0 USD
Relief Valve Spring
3707-33A
$ 127.00 $ 101.60 101.60000000000001 USD
Sensing Line O-Ring
022N
$ 13.00 13.0 USD
Wilkins 2.5-6" Sensing Line Bulkhead Fitting
BHF1BXL-100
$ 201.00 201.0 USD
Wilkins ½" Bulkhead Fitting for #3 Test Cock
BHF1CXL-100
$ 207.00 207.0 USD
¾" Outlet Ball Valve
34-850XL
$ 72.73 72.73 USD