I purchased two of these check valves for my two return pumps. I glued an NPT/Slip connector to the valve's unions and threaded. them directly to the return pumps. Works perfectly No noise and no springs needed!

Bought to replace my original one. What a difference! This brand is so easy to adjust and my water pressure in my RV is now FANTASTIC! Will buy again and recommend to my RV friends and fam.

The original sight glass on my Husky air compressor was plastic. Due to tightening, the threads split and started a leak. I chose a steel sight-glass as a replacement. I installed the new glass with the O-Ring supplied, and within an hour I had oil at the bottom of the glass.

This is a nice addition to my high pressure washer. it is nice to see what kind of pressure I am able to get with the different tips. My pressure washer is capable of up to 5000 pounds of pressure, and with hot water. This give me a much more precise idea of the pressure I am using for a given application.