It is designed for flush installation into drywall

which are provided by the manufacturer

14GA DUAL FR FTN-USE W/MPW200

Bradley P15-336 Timer-230V-80Sec-50Hz Replacement Part for Bradley Washroom Accessory Products

where it prevents users from dispensing more than one towel at a time

Hayward Check Valve, 3/4 in, Single, Y True Union, PVC, FNPT x FNPT - YC10075TU quickship3 It is designed for flushItem Check Valves: Check Valve; Flow Design: Single; Mechanism and Body Design: Y True Union; Body Material Valves: PVC; Pipe or Tube Size Check Valves: 3 4 in; Connection Type Check Valves: FNPT x FNPT; Cracking Pressure Check Valves: 1 psi; Mounting Orientation Check Valves: Horizontal, Vertical; Seal Material Check Valves: FPM; Max. Temp. Valves: 140 Degrees F; Min. Temp. Valves: 40 Degrees F; Max. Water Pressure Valves: 150 psi @ 70 Degrees F;