Watts 774-OSY-GXG 6 - Part of the 774 Series Geotextile and may be adjusted from

and may be adjusted from 25 to 75 psi (172 to 517 kPa)

or construction systems employing isolation techniques

2 check cover O-rings

ZN1926-3NL

This first check repair kit is used for replacing or repairing the first check on a 2 1/2 and 3 inch reduced pressure zone assembly used to prevent the reverse flow of polluted water from entering into the potable water supply due to backsiphonage and or backpressure

Watts 774-OSY-GXG 6 - Part of the 774 Series Geotextile and may be adjusted fromThis 6 inch lead free double check valve backflow preventer assembly is designed to prevent the reverse flow of contaminated water of non potable quality from being pumped or siphoned into the potable water supply due to backsiphonage and or backpressure in accordance with national plumbing codes and water authority requirements. It is ideal for protection at cross connections identified as non health hazard applications and from other contaminants