Chemtrol 265 PPM/pH Digital Controller With 4-20 mA Outputs state_New Jersey a 2-blade prop

a 2-blade prop

water saturation

marine grade plastic lifeguard chairs

The 180 is the original single-jet Polaris

Chemtrol 265 PPM/pH Digital Controller With 4-20 mA Outputs state_New Jersey a 2-blade propThe Chemtrol 265 PPM pH Digital Controller with 4 20 mA outputs features Santa Barbara's new Chlorine Sensor for Free Chlorine that gives easy to use, direct, and reliable readings of Free Chlorine concentration in pool water. The Chemtrol 265 is a microprocessor based digital controller designed to maintain both Free Chlorine (PPM) and water pH in commercial pools like hotels, motels, health clubs, municipal pools, and municipal water plants as well