Wilkins 4" 450 Backflow Repair Parts
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1st and 2nd Check Rubbers
$180.69Wilkins: 2 1/2" - 4" - Check Rubber Repair Kit for a 350A / 350AST / 375A / 375AST {OR} 4" 350 / 450 / 450ST / 375 / 475 / 475ST / 450STDA / 475STDA
Learn MoreSKU: RK4-350 PK
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1st Check
$582.82Wilkins: 2 1/2" - 4" - 1st Check Module w/ Retainer Clip for a 350A / 350ADA {OR} 4" 350 DC (Previously 3509-300A)
Learn MoreSKU: RK4-350CK1
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2nd Check
$545.78Wilkins: 2 1/2" - 4" - 2nd Check Module w/ Retainer Clip for a 350A / 350ADA / 375A / 375ADA {OR} 4" 350 DC / 375 RP
(Previously 3509-300B)
Learn MoreSKU: RK4-350CK2
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1st Check Retainer
$88.87Wilkins: 2 1/2" - 4"- 1st Check Seat Retainer for a 350A / 375A {OR} 4" 375 / 350 / 475 / 450 Learn MoreSKU: 3509-14B
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2nd Check Retainer
$119.24Wilkins: 2 1/2" - 4" - 2nd Check Seat Retainer for a 350A / 375A {OR} 4" 375 / 350 / 475 / 450
(Two required for one backflow assembly)
Learn MoreSKU: 3509-140
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Bulkhead Fitting
$158.47Wilkins: 2 1/2" - 4" - Cover or Body Bulkhead Fitting for a 350 / 450 DC {OR} 375 / 475 RP
(Previously BHF1CXL-100)
Learn MoreSKU: RK12-Bulkhead-M
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Bulkhead Fitting
$154.78Wilkins: 2 1/2" - 6" - Sensing Line Bulkhead Fitting for a 375 / 475 / 375A / 375DA / 475DA / 375ADA
(Previously BHF1BXL-100)
Learn MoreSKU: RK12-Bulkhead-F
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Bottom Cover
$99.98Wilkins: 2 1/2" - 6" - Bottom Cover Plate Kit for a 350 / 350A / 350AST / 450 / 450ST
Learn MoreSKU: RK212-350-Coverplate
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Bottom Cover Plate O-Ring
$3.50Wilkins: 2 1/2" - 6" - Bottom Cover Plate O-Ring for a 350 / 350A / 450 DC Learn MoreSKU: 031N
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4" OSY GxF Gate Valve
$2,064.99Wilkins: 4" OSY Gate Valve (Groove x Flange Connections)
Learn MoreSKU: 4-48OSYGXF
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4" NRS GxF Gate Valve
$1,325.00Wilkins: 4" NRS Gate Valve (Groove x Flange Connections)
Learn MoreSKU: 4-48GXF