The shelf measures 20 inches in length and 8 inches in depth

or as a supplemental support bar

or detergent soaps

2 inches wide

These cartridges have an attached heavy-duty vinyl soap valve

TimeMist Virtual Janitor Dispenser, 3.75" X 4.5" X 8.75", White - TMS1044336EA Nominal Size-30" X 18" X 1.5" The shelf measures 20 inchesPersonal virtual janitor works 24 7 improving washroom hygiene, eliminating odors and keeping fixtures and pipes clean. Easy to install with complete mounting kit. Works for urinal or connect into toilet tank. Operates on 2 C cell alkaline batteries. Refill service reminder. The simple and effective solution for improved washroom hygiene. Automatic cleaning and deodorizing system eliminates odors at the source while keeping fixtures and pipes clean.