Yep, the Litter Locker works on the same principal as a Diaper Genie. The refill cartridges look almost exactly alike. I'm betting that the Litter Locker refills are a bit tougher than the Diaper Genie refills (not sure though, would have to examine my sis's Diaper Genie), because diapers aren't gravel-coated, won't rip the refill baggy, and they weigh less than pee biscuits.