Can someone shed knowledge on this brand? I have never heard of them before and don't know if they are a quality manufacturer or cheap knockoff. Thanks.
http://www.compressed-air-systems.com/parts/before/before-recip/B51V6-GS12-parts.html
http://www.compressed-air-systems.com/parts/before/before-recip/B51V6-GS12-parts.html