The SENTRY FLOW METER from Better Water Industries Inc. is designed to provide accurate flow rates of pumps from 0 psi to 100 psi, at flow rates anywhere from 4 gpm to 24 gpm. By adjusting the ball valve, this meter can tell users the condition of the pressure tank, pressure switch and pump, and also if there are any restrictions in the water line.

Better Water Industries Inc., Card No. 53