ARK 4000B RC3 3/4" 1st & 2nd Check Rubber Kit

This is a check rubber repair kit for the 3/4" Ames 4000B reduced pressure zone backflow preventer. This kit includes the rubber parts for the first and second check assembly and cover O-ring. Be sure to lube all O-rings before installation. Genuine Ames repair parts. No special tools are required for servicing.