Master Tool Repair

Old Part Numbers: PS846234VM, MP513901AJ, MP513901SJAir Compressor Check Valve Kit Unloader Line Kit includes unloader tube, compression nuts and sleeves, and 1/4" compression adapter. Check valve is...

This compression adapter kit converts the new single-outlet air compressor pump head into 2 outlets. This will save you from having to purchase the expensive check valve for many older-style units...