Wilkins 4" 350AST Double Check Assembly
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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
$554.67Wilkins: 2 1/2" - 4" - 1st Check Module for a 350AST DC (Previously 3509ST-300A)
Learn MoreSKU: RK4-350ASTCK1
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2nd Check
$519.13Wilkins: 3" - 4" - 2nd Check Module for a 350AST DC (Previously 3509ST-300B)
Learn MoreSKU: RK4-350ASTCK2
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1st Check Retainer
$83.68Wilkins: 2 1/2" - 4" - 1st Check Seat Retainer for a 375AST RP / 350AST DC Learn MoreSKU: 3509ST-14B
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2nd Check Retainer
$119.24Wilkins: 2 1/2" - 4" - 2nd Check Seat Retainer for a 375AST RP / 350AST DC
(Two required for one backflow assembly)
Learn MoreSKU: 3509ST-140
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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