【Function of the Kit】This 0887718 Retrofit kit is used to repair the Series 800M4 Pressure Vacuum Breaker (leaking or malfunctioning), also designed to convert a regular 800M4 to a freeze resistant (FR) version (Convert 1" 800M4-QT to 800M4-FR).
【Difference between 2 Versions】The only difference between 800M4-QT and 800M4-FR is the vent float. The FR version has a stem in the center with a spring and a "BB" like ball that allows for expansion.
【Easy to be Installed】No need any complicated tools to install the kit. Firstly, shut off the supply pressure and drain the valve. Secondly, remove the two hood screws and the hood. Thirdly, turn counter clockwise to remove the bonnet. And then remove the vent spring and vent assembly. Finally, reassemble in the reverse order utilizing the new parts from the repair kit.
【What You Will Get】The package includes 1*Hood, 2*Hood Screws, 1* Bonnet, 1*Bonnet O-Ring, 1*Vent Spring and 1*Vent Float Assembly. —7 Pieces in total.
【100% Satisfaction Guarantee】We are committed to providing excellent products and the best service for our customers. If you are not satisfied with the product, you can simply return it. We support a 30-day full refund on return and a 12-month warranty.