The door on the unit also has a tumbler lock to protect the paper supplies from theft

Safti-Trol(R) Cartridge and Diaphragm Assembly

Size: 1/2 in

Bradley S65-239 Retro-Fit-Exp Ss-2 Touchtime Replacement Part

Watts Flanged Full Port Pressure Reducing Control Valve, 3 in Pipe Size - M115-3 FL Paper Towel Dispenser Accessories The door on the unitDesigned to automatically reduce a fluctuating higher upstream pressure to a constant lower downstream pressure regardless of varying flow rates, this WATTS pressure reducing control valve can throttle to sustain a minimum upstream pressure. Model is controlled by a normally open, pressure reducing pilot that Opens (allowing fluid out of the main valve cover chamber) when downstream pressure is below the adjustable setpoint, and Closes (allowing fluid