The Cartridge: The cartridge replaces the need to have a S trap fitted to the outlet of the urinal. The cartridge traps and works together with the biodegradable airseal sealant fluid. This fluid is lighter than other liquid forms, and floats inside the cartridge and seals the contents from the atmosphere, but allows urine to pass through it, therefore no odor! A free cartridge comes packed with each waterless urinal purchased. The Cartridge is good for an estimated 12,000 to 15,000 uses before it needs to be replaced, on average this will be 3 to 4 months depending upon usage.

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