| 摘要 |
A cat litter box sifter comprises (1) a rectangular tray bottom with perforations extending throughout the length and width dimensions of said tray bottom and (2) four side walls, each extending upwardly from one respective side edge of the rectangular tray with perforations extending throughout the length and width dimensions of each side wall. Multiple trays are assembled from a preformed litter sifter sheet material and nested together in a cat box below the level of granular litter material within the cat box. Single trays can be removed successively to effectively remove fecal matter without also removing the granular litter material, thus extending its duration of use.
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