B&K Low Lead Backflow Preventer Vacuum Breaker Zircon it increases cutting efficiency over

it increases cutting efficiency over PM1 chain by 13%

5-wire cage roller frame with metal ferrule

made of high-impact ABS plastic

The decompression valve temporarily reduces the compression in the combustion chamber during cranking and helps reduce the effort needed to pull the starter rope

B&K Low Lead Backflow Preventer Vacuum Breaker Zircon it increases cutting efficiency overPrevents the potable water in your home from getting contaminated. Fits any 3 4' hose thread outlet. Break off attachment screws permanently installs and prevents tampering. Hose threads comply with ANSI (American National Standards Institute) B1. 20. 7. cUPC (Canadian UPC) approved.