SageKing Litter Quick Sifting Litter Box The easiest sifting litter box system you will ever maintain! Litter Quick features an innovative Lift & Lock sifting gate. To clean the cat litter box simply pop off the top half of the sifting litter box and slide the sifting gate on the half with the dirty cat litter to the sifting position. Sift the cat litter through the gate by pouring the cat litter into the empty top half. The clumps and solid waste will be trapped and only clean litter will sift through. Dump the clumps into a trash bag, return the sifting gate to it's stowed position and use the now empty half to cover the sifting cat litter box