A check vavle prevents water from syphoning back from the main tank into the sump. Not always needed if the sump is set up propperly.

A ball valve is a valve with a spherical disc, the part of the valve which controls the flow through it.

My new-to-me old boat, on my first sail across the Sea of Cortez, she began filling the bilge about the 3rd day out of San Carlos enroute to La Paz.

ON/OFF valve from size 4 up to 24 inch. Application is highly sour (H2S and CO2 and water and also a little CL). Material that costumer is ordered is A186 F6a for ball and also request for fully stell

2" PVC Ball valve. I noticed that it is difficult to turn the handle. On doing some reading on the web the difficulty in turning is an ongoing concern for many.

FloodStop is a point of use, leak detection and automatic water shut-off system designed for residential, condo and apartment dwellings.

The compression valve type of faucet will eventually leak but they are typically easy to repair.

Valve & Pipe fittings are the main subjects, the wide range of applications in almost all industries.