Backflow Preventers

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WATTS® 0061670 SD-3 Dual Check Valve, 3/8 in Nominal, MNPT End Style, 316 Stainless Steel Body
WATTS® 0061671 SD-3 Dual Check Valve, 3/8 in Nominal, SAE Male Flare End Style, 316 Stainless Steel Body
WATTS® 0061670 SD-3 Dual Check Valve, 3/8 in Nominal, MNPT End Style, 316 Stainless Steel Body
WATTS® 0061671 SD-3 Dual Check Valve, 3/8 in Nominal, SAE Male Flare End Style, 316 Stainless Steel Body