pH Probe Fitting:

1/2" male pipe thread by 1/2" probe compression fitting.

Check Valve:

Replacemenet check valve for GEO reactors, suitable for liquid or gas.

Micro Ball Valve:

Replacement effluent line controll valve for GEO reactors

Thumb Screw:

Replacement 1/4-20 thumbscrews for GEO reactors. Sold per each.