7016643 - ARK 4000BM3 CK2 3/4" 2nd Check Kit

This is a second check repair kit for the 3/4" Ames 4000BM3 reduced pressure zone backflow preventer. This kit includes the complete 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.