Abstract: A cat litter box which has an open topped structural box (20) with a "U" shaped slot (30) on one side (24). A brush seal (32) is disposed within the box interior defining a pair of opposed seals with the bristle ends contiguously positioned in the middle of the slot. A screen grid tray (42) is located inside the box beneath granular litter material 34). In operation, the tray is lifted up by handles (44) on each end sifting the material therethrough capturing cat excrement for disposal. The tray is inserted into the slot parting the brush seal displacing the litter material until it is pushed fully into the box. A second embodiment includes a pair of mechanical cam handles (52) for levering the tray the final distance of the insertion travel into the cat litter box.