LitterWorks Eco-Tray kit #2: An eco-nomic, eco-friendly permanent tray kit, replaces disposable cardboard litter trays. Compatible with Scoopfree®, Scoopmaid®, and Just the Crystals® litter. Includes "Nose Guard", cleaning tool, and 2 carbon odor absorbing filters! -Made in USA
The Eco-Tray is a permanent tray replacement for cardboard cartridges, that you fill with your own crystal litter.  This tray is compatible with Just the Crystals litter and is compatible with Scoopfree and Scoopmaid self-cleaning litter boxes."Eco"-nomics:  This tray pays for itself in just a few months use compared to purchasing pre-filled cartridges."Eco"-friendly:  No disposing of those large cardboard trays, just the crystal litter which breaks down into sand over time.The kit includes the "Nose Guard", which is a plastic strip that attaches to the magnets under the litter box's lid, for improved odor control.  Also included is a special cleaning tool, that is precision cut to match the contours of the Eco Tray, allowing you to remove wet crystals easily, completely, and in a more sanitary way.  Finally, we have included a 2-pack of our odor absorbing carbon pads.  These attach under the lid of the Scoopfree box to reduce odors in the waste compartment.