Will these fit in a Zero-Flush waterless urinal?

No...the EZ Trap Waterless Urinal Cartridge will NOT fit Zero-Flush brand of waterless urinals. The EZ Trap Cartridge is a direct fit for Sloan, Falcon, and Bobrick Waterless Urinals. One user reported that if you grind the side extensions a little bit it will fit to American Standard waterless urinals.
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