ZEOLITE FILTER 2XL 29203 Product Use: REDUCE LITTER BOX ODOR WITH THESE SPECIALLY DEVELOPED ACTIVATED CHARCOAL AIR FILTERS. FILTERS FIT INTO GRILL INSERTS ON SPECIALLY DESIGNED LITTER BOX HOODS. AVAILABLE IN TWO SIZES - BE SURETO CHECK FOR THE CORRECT SIZE! CONTAINS 1 EACH. Label Instructions: Ingredients: 29203 JUMBO (6.2 X 6.1 X .5 CONTAINS 1 EACH) BLACK Manufacturer: DOSKOCIL MFG CO INC Weight: 0.10 Size: 2 EXTRA LARGE Color: UPC Code: 029695292033