Overview Reviews Product Description 3540B-10 Union Check Valve-PB1/2 IN Product Videos Custom Field Please Note This item is not available. Product Reviews Write a Review Write a Review × Watts Watts - 3540B-10 Rating * Select Rating 1 star (worst) 2 stars 3 stars (average) 4 stars 5 stars (best) Name Email * Review Subject * Comments *
Quick view Watts sku: WATTS-016640021 Watts - 10 MSRP: $15.70 Was: Now: OUR PRICE: $12.56 Add to Cart Quick view Watts sku: WATTS-OF744-10 Watts - OF744-10 MSRP: Was: Now: OUR PRICE: $1,500.00 Quick view Watts sku: WATTS-0721505 Watts - GOV80M1-10 10 MSRP: $105.50 Was: Now: OUR PRICE: $84.40 Quick view Watts sku: WATTS-0650236 Watts - 3545B-10 MSRP: $3.00 Was: Now: OUR PRICE: $2.40 Add to Cart Quick view Watts sku: WATTS-0651065 Watts - 162-10 MSRP: $21.00 Was: Now: OUR PRICE: $16.80 Add to Cart Quick view Watts sku: WATTS-68000077 Watts 68000077 10-9898-10 MSRP: $32.07 Was: Now: OUR PRICE: $25.66 Add to Cart Quick view Watts sku: WATTS-68000190 Watts 68000190 10-BZ008-10 MSRP: $74.70 Was: Now: OUR PRICE: $59.76 Add to Cart Quick view Watts sku: WATTS-68000046 Watts 68000046 10-8888-10 MSRP: $31.64 Was: Now: OUR PRICE: $25.31 Add to Cart Quick view Watts sku: WATTS-68000062 Watts 68000062 10-9696-10 MSRP: $33.36 Was: Now: OUR PRICE: $26.69 Add to Cart Recommended Quick view Watts sku: WATTS-016640021 Watts - 10 MSRP: $15.70 Was: Now: OUR PRICE: $12.56 Add to Cart Quick view Watts sku: WATTS-OF744-10 Watts - OF744-10 MSRP: Was: Now: OUR PRICE: $1,500.00 Quick view Watts sku: WATTS-0721505 Watts - GOV80M1-10 10 MSRP: $105.50 Was: Now: OUR PRICE: $84.40 Quick view Watts sku: WATTS-0650236 Watts - 3545B-10 MSRP: $3.00 Was: Now: OUR PRICE: $2.40 Add to Cart Quick view Watts sku: WATTS-0651065 Watts - 162-10 MSRP: $21.00 Was: Now: OUR PRICE: $16.80 Add to Cart Quick view Watts sku: WATTS-68000077 Watts 68000077 10-9898-10 MSRP: $32.07 Was: Now: OUR PRICE: $25.66 Add to Cart Quick view Watts sku: WATTS-68000190 Watts 68000190 10-BZ008-10 MSRP: $74.70 Was: Now: OUR PRICE: $59.76 Add to Cart Quick view Watts sku: WATTS-68000046 Watts 68000046 10-8888-10 MSRP: $31.64 Was: Now: OUR PRICE: $25.31 Add to Cart Quick view Watts sku: WATTS-68000062 Watts 68000062 10-9696-10 MSRP: $33.36 Was: Now: OUR PRICE: $26.69 Add to Cart × OK Search Our Site Search Reset Search × Need help identifying a replacement part or faucet? Email us your samples!
Quick view Watts sku: WATTS-OF744-10 Watts - OF744-10 MSRP: Was: Now: OUR PRICE: $1,500.00 Quick view Watts sku: WATTS-0721505 Watts - GOV80M1-10 10 MSRP: $105.50 Was: Now: OUR PRICE: $84.40 Quick view Watts sku: WATTS-0650236 Watts - 3545B-10 MSRP: $3.00 Was: Now: OUR PRICE: $2.40 Add to Cart Quick view Watts sku: WATTS-0651065 Watts - 162-10 MSRP: $21.00 Was: Now: OUR PRICE: $16.80 Add to Cart Quick view Watts sku: WATTS-68000077 Watts 68000077 10-9898-10 MSRP: $32.07 Was: Now: OUR PRICE: $25.66 Add to Cart Quick view Watts sku: WATTS-68000190 Watts 68000190 10-BZ008-10 MSRP: $74.70 Was: Now: OUR PRICE: $59.76 Add to Cart Quick view Watts sku: WATTS-68000046 Watts 68000046 10-8888-10 MSRP: $31.64 Was: Now: OUR PRICE: $25.31 Add to Cart Quick view Watts sku: WATTS-68000062 Watts 68000062 10-9696-10 MSRP: $33.36 Was: Now: OUR PRICE: $26.69 Add to Cart Recommended Quick view Watts sku: WATTS-016640021 Watts - 10 MSRP: $15.70 Was: Now: OUR PRICE: $12.56 Add to Cart Quick view Watts sku: WATTS-OF744-10 Watts - OF744-10 MSRP: Was: Now: OUR PRICE: $1,500.00 Quick view Watts sku: WATTS-0721505 Watts - GOV80M1-10 10 MSRP: $105.50 Was: Now: OUR PRICE: $84.40 Quick view Watts sku: WATTS-0650236 Watts - 3545B-10 MSRP: $3.00 Was: Now: OUR PRICE: $2.40 Add to Cart Quick view Watts sku: WATTS-0651065 Watts - 162-10 MSRP: $21.00 Was: Now: OUR PRICE: $16.80 Add to Cart Quick view Watts sku: WATTS-68000077 Watts 68000077 10-9898-10 MSRP: $32.07 Was: Now: OUR PRICE: $25.66 Add to Cart Quick view Watts sku: WATTS-68000190 Watts 68000190 10-BZ008-10 MSRP: $74.70 Was: Now: OUR PRICE: $59.76 Add to Cart Quick view Watts sku: WATTS-68000046 Watts 68000046 10-8888-10 MSRP: $31.64 Was: Now: OUR PRICE: $25.31 Add to Cart Quick view Watts sku: WATTS-68000062 Watts 68000062 10-9696-10 MSRP: $33.36 Was: Now: OUR PRICE: $26.69 Add to Cart × OK Search Our Site Search Reset Search × Need help identifying a replacement part or faucet? Email us your samples!
Quick view Watts sku: WATTS-0721505 Watts - GOV80M1-10 10 MSRP: $105.50 Was: Now: OUR PRICE: $84.40 Quick view Watts sku: WATTS-0650236 Watts - 3545B-10 MSRP: $3.00 Was: Now: OUR PRICE: $2.40 Add to Cart Quick view Watts sku: WATTS-0651065 Watts - 162-10 MSRP: $21.00 Was: Now: OUR PRICE: $16.80 Add to Cart Quick view Watts sku: WATTS-68000077 Watts 68000077 10-9898-10 MSRP: $32.07 Was: Now: OUR PRICE: $25.66 Add to Cart Quick view Watts sku: WATTS-68000190 Watts 68000190 10-BZ008-10 MSRP: $74.70 Was: Now: OUR PRICE: $59.76 Add to Cart Quick view Watts sku: WATTS-68000046 Watts 68000046 10-8888-10 MSRP: $31.64 Was: Now: OUR PRICE: $25.31 Add to Cart Quick view Watts sku: WATTS-68000062 Watts 68000062 10-9696-10 MSRP: $33.36 Was: Now: OUR PRICE: $26.69 Add to Cart Recommended Quick view Watts sku: WATTS-016640021 Watts - 10 MSRP: $15.70 Was: Now: OUR PRICE: $12.56 Add to Cart Quick view Watts sku: WATTS-OF744-10 Watts - OF744-10 MSRP: Was: Now: OUR PRICE: $1,500.00 Quick view Watts sku: WATTS-0721505 Watts - GOV80M1-10 10 MSRP: $105.50 Was: Now: OUR PRICE: $84.40 Quick view Watts sku: WATTS-0650236 Watts - 3545B-10 MSRP: $3.00 Was: Now: OUR PRICE: $2.40 Add to Cart Quick view Watts sku: WATTS-0651065 Watts - 162-10 MSRP: $21.00 Was: Now: OUR PRICE: $16.80 Add to Cart Quick view Watts sku: WATTS-68000077 Watts 68000077 10-9898-10 MSRP: $32.07 Was: Now: OUR PRICE: $25.66 Add to Cart Quick view Watts sku: WATTS-68000190 Watts 68000190 10-BZ008-10 MSRP: $74.70 Was: Now: OUR PRICE: $59.76 Add to Cart Quick view Watts sku: WATTS-68000046 Watts 68000046 10-8888-10 MSRP: $31.64 Was: Now: OUR PRICE: $25.31 Add to Cart Quick view Watts sku: WATTS-68000062 Watts 68000062 10-9696-10 MSRP: $33.36 Was: Now: OUR PRICE: $26.69 Add to Cart × OK Search Our Site Search Reset Search × Need help identifying a replacement part or faucet? Email us your samples!
Quick view Watts sku: WATTS-0650236 Watts - 3545B-10 MSRP: $3.00 Was: Now: OUR PRICE: $2.40 Add to Cart Quick view Watts sku: WATTS-0651065 Watts - 162-10 MSRP: $21.00 Was: Now: OUR PRICE: $16.80 Add to Cart Quick view Watts sku: WATTS-68000077 Watts 68000077 10-9898-10 MSRP: $32.07 Was: Now: OUR PRICE: $25.66 Add to Cart Quick view Watts sku: WATTS-68000190 Watts 68000190 10-BZ008-10 MSRP: $74.70 Was: Now: OUR PRICE: $59.76 Add to Cart Quick view Watts sku: WATTS-68000046 Watts 68000046 10-8888-10 MSRP: $31.64 Was: Now: OUR PRICE: $25.31 Add to Cart Quick view Watts sku: WATTS-68000062 Watts 68000062 10-9696-10 MSRP: $33.36 Was: Now: OUR PRICE: $26.69 Add to Cart Recommended Quick view Watts sku: WATTS-016640021 Watts - 10 MSRP: $15.70 Was: Now: OUR PRICE: $12.56 Add to Cart Quick view Watts sku: WATTS-OF744-10 Watts - OF744-10 MSRP: Was: Now: OUR PRICE: $1,500.00 Quick view Watts sku: WATTS-0721505 Watts - GOV80M1-10 10 MSRP: $105.50 Was: Now: OUR PRICE: $84.40 Quick view Watts sku: WATTS-0650236 Watts - 3545B-10 MSRP: $3.00 Was: Now: OUR PRICE: $2.40 Add to Cart Quick view Watts sku: WATTS-0651065 Watts - 162-10 MSRP: $21.00 Was: Now: OUR PRICE: $16.80 Add to Cart Quick view Watts sku: WATTS-68000077 Watts 68000077 10-9898-10 MSRP: $32.07 Was: Now: OUR PRICE: $25.66 Add to Cart Quick view Watts sku: WATTS-68000190 Watts 68000190 10-BZ008-10 MSRP: $74.70 Was: Now: OUR PRICE: $59.76 Add to Cart Quick view Watts sku: WATTS-68000046 Watts 68000046 10-8888-10 MSRP: $31.64 Was: Now: OUR PRICE: $25.31 Add to Cart Quick view Watts sku: WATTS-68000062 Watts 68000062 10-9696-10 MSRP: $33.36 Was: Now: OUR PRICE: $26.69 Add to Cart × OK Search Our Site Search Reset Search × Need help identifying a replacement part or faucet? Email us your samples!
Quick view Watts sku: WATTS-0651065 Watts - 162-10 MSRP: $21.00 Was: Now: OUR PRICE: $16.80 Add to Cart Quick view Watts sku: WATTS-68000077 Watts 68000077 10-9898-10 MSRP: $32.07 Was: Now: OUR PRICE: $25.66 Add to Cart Quick view Watts sku: WATTS-68000190 Watts 68000190 10-BZ008-10 MSRP: $74.70 Was: Now: OUR PRICE: $59.76 Add to Cart Quick view Watts sku: WATTS-68000046 Watts 68000046 10-8888-10 MSRP: $31.64 Was: Now: OUR PRICE: $25.31 Add to Cart Quick view Watts sku: WATTS-68000062 Watts 68000062 10-9696-10 MSRP: $33.36 Was: Now: OUR PRICE: $26.69 Add to Cart Recommended Quick view Watts sku: WATTS-016640021 Watts - 10 MSRP: $15.70 Was: Now: OUR PRICE: $12.56 Add to Cart Quick view Watts sku: WATTS-OF744-10 Watts - OF744-10 MSRP: Was: Now: OUR PRICE: $1,500.00 Quick view Watts sku: WATTS-0721505 Watts - GOV80M1-10 10 MSRP: $105.50 Was: Now: OUR PRICE: $84.40 Quick view Watts sku: WATTS-0650236 Watts - 3545B-10 MSRP: $3.00 Was: Now: OUR PRICE: $2.40 Add to Cart Quick view Watts sku: WATTS-0651065 Watts - 162-10 MSRP: $21.00 Was: Now: OUR PRICE: $16.80 Add to Cart Quick view Watts sku: WATTS-68000077 Watts 68000077 10-9898-10 MSRP: $32.07 Was: Now: OUR PRICE: $25.66 Add to Cart Quick view Watts sku: WATTS-68000190 Watts 68000190 10-BZ008-10 MSRP: $74.70 Was: Now: OUR PRICE: $59.76 Add to Cart Quick view Watts sku: WATTS-68000046 Watts 68000046 10-8888-10 MSRP: $31.64 Was: Now: OUR PRICE: $25.31 Add to Cart Quick view Watts sku: WATTS-68000062 Watts 68000062 10-9696-10 MSRP: $33.36 Was: Now: OUR PRICE: $26.69 Add to Cart × OK Search Our Site Search Reset Search × Need help identifying a replacement part or faucet? Email us your samples!
Quick view Watts sku: WATTS-68000077 Watts 68000077 10-9898-10 MSRP: $32.07 Was: Now: OUR PRICE: $25.66 Add to Cart Quick view Watts sku: WATTS-68000190 Watts 68000190 10-BZ008-10 MSRP: $74.70 Was: Now: OUR PRICE: $59.76 Add to Cart Quick view Watts sku: WATTS-68000046 Watts 68000046 10-8888-10 MSRP: $31.64 Was: Now: OUR PRICE: $25.31 Add to Cart Quick view Watts sku: WATTS-68000062 Watts 68000062 10-9696-10 MSRP: $33.36 Was: Now: OUR PRICE: $26.69 Add to Cart Recommended Quick view Watts sku: WATTS-016640021 Watts - 10 MSRP: $15.70 Was: Now: OUR PRICE: $12.56 Add to Cart Quick view Watts sku: WATTS-OF744-10 Watts - OF744-10 MSRP: Was: Now: OUR PRICE: $1,500.00 Quick view Watts sku: WATTS-0721505 Watts - GOV80M1-10 10 MSRP: $105.50 Was: Now: OUR PRICE: $84.40 Quick view Watts sku: WATTS-0650236 Watts - 3545B-10 MSRP: $3.00 Was: Now: OUR PRICE: $2.40 Add to Cart Quick view Watts sku: WATTS-0651065 Watts - 162-10 MSRP: $21.00 Was: Now: OUR PRICE: $16.80 Add to Cart Quick view Watts sku: WATTS-68000077 Watts 68000077 10-9898-10 MSRP: $32.07 Was: Now: OUR PRICE: $25.66 Add to Cart Quick view Watts sku: WATTS-68000190 Watts 68000190 10-BZ008-10 MSRP: $74.70 Was: Now: OUR PRICE: $59.76 Add to Cart Quick view Watts sku: WATTS-68000046 Watts 68000046 10-8888-10 MSRP: $31.64 Was: Now: OUR PRICE: $25.31 Add to Cart Quick view Watts sku: WATTS-68000062 Watts 68000062 10-9696-10 MSRP: $33.36 Was: Now: OUR PRICE: $26.69 Add to Cart × OK Search Our Site Search Reset Search × Need help identifying a replacement part or faucet? Email us your samples!
Quick view Watts sku: WATTS-68000190 Watts 68000190 10-BZ008-10 MSRP: $74.70 Was: Now: OUR PRICE: $59.76 Add to Cart Quick view Watts sku: WATTS-68000046 Watts 68000046 10-8888-10 MSRP: $31.64 Was: Now: OUR PRICE: $25.31 Add to Cart Quick view Watts sku: WATTS-68000062 Watts 68000062 10-9696-10 MSRP: $33.36 Was: Now: OUR PRICE: $26.69 Add to Cart
Quick view Watts sku: WATTS-68000046 Watts 68000046 10-8888-10 MSRP: $31.64 Was: Now: OUR PRICE: $25.31 Add to Cart Quick view Watts sku: WATTS-68000062 Watts 68000062 10-9696-10 MSRP: $33.36 Was: Now: OUR PRICE: $26.69 Add to Cart
Quick view Watts sku: WATTS-68000062 Watts 68000062 10-9696-10 MSRP: $33.36 Was: Now: OUR PRICE: $26.69 Add to Cart
Quick view Watts sku: WATTS-016640021 Watts - 10 MSRP: $15.70 Was: Now: OUR PRICE: $12.56 Add to Cart Quick view Watts sku: WATTS-OF744-10 Watts - OF744-10 MSRP: Was: Now: OUR PRICE: $1,500.00 Quick view Watts sku: WATTS-0721505 Watts - GOV80M1-10 10 MSRP: $105.50 Was: Now: OUR PRICE: $84.40 Quick view Watts sku: WATTS-0650236 Watts - 3545B-10 MSRP: $3.00 Was: Now: OUR PRICE: $2.40 Add to Cart Quick view Watts sku: WATTS-0651065 Watts - 162-10 MSRP: $21.00 Was: Now: OUR PRICE: $16.80 Add to Cart Quick view Watts sku: WATTS-68000077 Watts 68000077 10-9898-10 MSRP: $32.07 Was: Now: OUR PRICE: $25.66 Add to Cart Quick view Watts sku: WATTS-68000190 Watts 68000190 10-BZ008-10 MSRP: $74.70 Was: Now: OUR PRICE: $59.76 Add to Cart Quick view Watts sku: WATTS-68000046 Watts 68000046 10-8888-10 MSRP: $31.64 Was: Now: OUR PRICE: $25.31 Add to Cart Quick view Watts sku: WATTS-68000062 Watts 68000062 10-9696-10 MSRP: $33.36 Was: Now: OUR PRICE: $26.69 Add to Cart
Quick view Watts sku: WATTS-OF744-10 Watts - OF744-10 MSRP: Was: Now: OUR PRICE: $1,500.00 Quick view Watts sku: WATTS-0721505 Watts - GOV80M1-10 10 MSRP: $105.50 Was: Now: OUR PRICE: $84.40 Quick view Watts sku: WATTS-0650236 Watts - 3545B-10 MSRP: $3.00 Was: Now: OUR PRICE: $2.40 Add to Cart Quick view Watts sku: WATTS-0651065 Watts - 162-10 MSRP: $21.00 Was: Now: OUR PRICE: $16.80 Add to Cart Quick view Watts sku: WATTS-68000077 Watts 68000077 10-9898-10 MSRP: $32.07 Was: Now: OUR PRICE: $25.66 Add to Cart Quick view Watts sku: WATTS-68000190 Watts 68000190 10-BZ008-10 MSRP: $74.70 Was: Now: OUR PRICE: $59.76 Add to Cart Quick view Watts sku: WATTS-68000046 Watts 68000046 10-8888-10 MSRP: $31.64 Was: Now: OUR PRICE: $25.31 Add to Cart Quick view Watts sku: WATTS-68000062 Watts 68000062 10-9696-10 MSRP: $33.36 Was: Now: OUR PRICE: $26.69 Add to Cart
Quick view Watts sku: WATTS-0721505 Watts - GOV80M1-10 10 MSRP: $105.50 Was: Now: OUR PRICE: $84.40 Quick view Watts sku: WATTS-0650236 Watts - 3545B-10 MSRP: $3.00 Was: Now: OUR PRICE: $2.40 Add to Cart Quick view Watts sku: WATTS-0651065 Watts - 162-10 MSRP: $21.00 Was: Now: OUR PRICE: $16.80 Add to Cart Quick view Watts sku: WATTS-68000077 Watts 68000077 10-9898-10 MSRP: $32.07 Was: Now: OUR PRICE: $25.66 Add to Cart Quick view Watts sku: WATTS-68000190 Watts 68000190 10-BZ008-10 MSRP: $74.70 Was: Now: OUR PRICE: $59.76 Add to Cart Quick view Watts sku: WATTS-68000046 Watts 68000046 10-8888-10 MSRP: $31.64 Was: Now: OUR PRICE: $25.31 Add to Cart Quick view Watts sku: WATTS-68000062 Watts 68000062 10-9696-10 MSRP: $33.36 Was: Now: OUR PRICE: $26.69 Add to Cart
Quick view Watts sku: WATTS-0650236 Watts - 3545B-10 MSRP: $3.00 Was: Now: OUR PRICE: $2.40 Add to Cart Quick view Watts sku: WATTS-0651065 Watts - 162-10 MSRP: $21.00 Was: Now: OUR PRICE: $16.80 Add to Cart Quick view Watts sku: WATTS-68000077 Watts 68000077 10-9898-10 MSRP: $32.07 Was: Now: OUR PRICE: $25.66 Add to Cart Quick view Watts sku: WATTS-68000190 Watts 68000190 10-BZ008-10 MSRP: $74.70 Was: Now: OUR PRICE: $59.76 Add to Cart Quick view Watts sku: WATTS-68000046 Watts 68000046 10-8888-10 MSRP: $31.64 Was: Now: OUR PRICE: $25.31 Add to Cart Quick view Watts sku: WATTS-68000062 Watts 68000062 10-9696-10 MSRP: $33.36 Was: Now: OUR PRICE: $26.69 Add to Cart
Quick view Watts sku: WATTS-0651065 Watts - 162-10 MSRP: $21.00 Was: Now: OUR PRICE: $16.80 Add to Cart Quick view Watts sku: WATTS-68000077 Watts 68000077 10-9898-10 MSRP: $32.07 Was: Now: OUR PRICE: $25.66 Add to Cart Quick view Watts sku: WATTS-68000190 Watts 68000190 10-BZ008-10 MSRP: $74.70 Was: Now: OUR PRICE: $59.76 Add to Cart Quick view Watts sku: WATTS-68000046 Watts 68000046 10-8888-10 MSRP: $31.64 Was: Now: OUR PRICE: $25.31 Add to Cart Quick view Watts sku: WATTS-68000062 Watts 68000062 10-9696-10 MSRP: $33.36 Was: Now: OUR PRICE: $26.69 Add to Cart
Quick view Watts sku: WATTS-68000077 Watts 68000077 10-9898-10 MSRP: $32.07 Was: Now: OUR PRICE: $25.66 Add to Cart Quick view Watts sku: WATTS-68000190 Watts 68000190 10-BZ008-10 MSRP: $74.70 Was: Now: OUR PRICE: $59.76 Add to Cart Quick view Watts sku: WATTS-68000046 Watts 68000046 10-8888-10 MSRP: $31.64 Was: Now: OUR PRICE: $25.31 Add to Cart Quick view Watts sku: WATTS-68000062 Watts 68000062 10-9696-10 MSRP: $33.36 Was: Now: OUR PRICE: $26.69 Add to Cart
Quick view Watts sku: WATTS-68000190 Watts 68000190 10-BZ008-10 MSRP: $74.70 Was: Now: OUR PRICE: $59.76 Add to Cart Quick view Watts sku: WATTS-68000046 Watts 68000046 10-8888-10 MSRP: $31.64 Was: Now: OUR PRICE: $25.31 Add to Cart Quick view Watts sku: WATTS-68000062 Watts 68000062 10-9696-10 MSRP: $33.36 Was: Now: OUR PRICE: $26.69 Add to Cart
Quick view Watts sku: WATTS-68000046 Watts 68000046 10-8888-10 MSRP: $31.64 Was: Now: OUR PRICE: $25.31 Add to Cart Quick view Watts sku: WATTS-68000062 Watts 68000062 10-9696-10 MSRP: $33.36 Was: Now: OUR PRICE: $26.69 Add to Cart
Quick view Watts sku: WATTS-68000062 Watts 68000062 10-9696-10 MSRP: $33.36 Was: Now: OUR PRICE: $26.69 Add to Cart