A removable cartridge assembly (16) for a waterless urinal (10). The cartridgeassembly (16) comprises a cup (42) and a cap (46). The cup (42) is adapted toreceive ascent block (44) therein. The cap (46) is adapted to releasably engage the cup(44).When the cap (46) is engaged with the cup (42), the scent block (44) isretained in the cup(42) and, when the cap (46) is disengaged from the cup (42), the scent block(44) isremovable from within the cup (42), and thus from the cartridge assembly (16).
