Our hard workin' customer service team will take a break for a company event on Dec. 15 starting at 5:30 p.m. CT. You can still place orders on zoro.com or send questions via our contact form. Regular customer service hours resume on Dec. 16 at 7 a.m. CT.

Reduced Pressure Zone Backflow Preventer

WATTS| Zoro #: G2221572| Mfr #: 957-OSY 4"

$1925.06 /ea

This item ships free. Details.Standard ground shipping.
Body Material: 304 stainless steel
Standards: ASSE 1013, CSA B64.4, CUL, FM
Length: 31-11/16"
Save 15%. Sign up for Z-mail.


Zoro #: G2221572 Mfr #: 957-OSY 4"
Body Material: 304 stainless steelStandards: ASSE 1013, CSA B64.4, CUL, FM
Length: 31-11/16"Max. Pressure: 175 psi
Max. Temp.: 110 Degrees FFeatures: Outside Stem and Yoke
Size: 4"Temp. Range: 33 Degrees to 110 Degrees F
Item: Reduced Pressure Zone Backflow PreventerConnection: Flanged
Width: 22-3/4"Series: Watts 957
Country of Origin (subject to change): United States


Reduced Pressure Zone Backflow Preventer, Series Watts 957, Size 4 In., Connection Flanged, Body Material 304 Stainless Steel, Temp. Range 33 Degrees to 110 Degrees F, Max. Temp. 110 Degrees F, Max. Pressure 175 psi, Width 22-3/4 In., Length 31-11/16 In., Features Outside Stem and Yoke, Standards ASSE 1013, CSA B64.4, CUL, FM

Restrictions and Compliance

This product has been certified by a third party to be compliant with the “Safe Drinking Water Act” requirements for low lead in potable (human consumption - drinking and cooking) and non-potable water applications (non-human consumption).