you can convert the unit to hold folded towels with the Bobrick accessory model number 3944-52 or additional sizes of towel rolls with the Bobrick accessory model number 3974-50

PVC Wafer Check Valves

Bradley P15-419 Safety Screws And Wrench Replacement Part for Bradley Washroom Accessory Products

Bradley Mills Partition Stainless Steel Door Hardware Kit with Flat Hinge

Proprietary/Universal: Universal

Val-Matic 175 psi Clean Water Air Release Valve, 1/2 in Inlet Size, 1/2 in Outlet Size - 15A Diameter-1.31" you can convert the unitAir Release and Air Vacuum Valves, Max. temp.: 250F Vacuum pressure: 29 Hg FNPT connection,Cast iron construction. Float and internal components are 316 stainless steel.,Air Release Valves,Resilient seal for positive shutoff. Nonclogging design helps eliminate backwash. Releases pockets of accumulated air in a pressurized water system. Suitable for use in water distribution and transmission fire pumps, pressure filters, and hydropneumatic tools.