This second check replacement kit is used to repair or replace the second check on a 2 1/2 to 3 inch lead free lead free double check valve assembly and is used to prevent the backflow of contaminated water into the potable water supply
This 3/4 inch lead free copper silicon alloy reduced pressure zone backflow preventer assembly is designed to prevent the backflow of polluted water from entering into the potable water supply due to backsiphonage and or backpressure in accordance with national plumbing codes and water authority requirements
while resisting corrosion and long-term exposure to moisture
NOTE: This product has replaced the StrataGrid SG700
No special tool required for installation
Watts LF800M4-QT-FZ 1 1/4 - Part of the LF800M4QT Series mainline-adatile This second check replacement kitThis 1 1 4 inch lead free anti siphon pressure vacuum breaker backflow preventer prevents the reverse flow of polluted water from entering into the potable water supply due to backsiphonage. It consists of a lead free cast copper silicon alloy body construction, silicone rubber check valve disc, plastic check valve seat, stainless steel springs, a bonnet with silicone rubber O ring seal, a lightweight plastic disc float, lever handle shutoff, and test
