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Litter Boxes
  • Modkat XL
    Front/Top-Entry Litter Box

  • Modkat Top-entry Litter Box

    Top-Entry Litter Box

  • Flip
    Front-Entry Litter Box

  • Tray
    Open Litter Box

  • Accessories
  • Litter Keeper
    Two colors

  • Lounge + Play
    Scratchers & toys

  • Litter Mats
    Multiple styles, colors & sizes

  • Clean + Organize
    For a tidy litter area

  • Learn
  • Purrr Blog
    Happy + healthy kitty

  • Our Story
    How it all started

  • Support
    Read FAQ's or contact us

  • Liners
  • Modkat
    Type A

  • Flip
    Type F

  • Modkat XL
    Type C (Top-Entry)

  • Modkat XL
    Type D (Front-Entry)

  • Tray
    Type G

  • All Liners

  • Litter Box Odor Filter Kit

      • Odor Filter Kit: Includes 1 basket + 2 filters

      • Filter Replacement Pack: Includes 2 filters
      • Naturally traps and eliminates odors
      • 100% Natural Bamboo Charcoal
      • Fits the FlipModkat, and Modkat XL
      • Fragrance free, non-toxic and eco-friendly
      • Helps prevent mold, mildew and bacteria
      • Recharge in the sun
    • Filter Holder
      • Length x Width x Height
        3.7 x 3.6 x 1.0in.
        (9.4 x 9.2 x 2.5cm)

    Customer Reviews

    Based on 109 reviews
    Deborah T.M.

    Litter Box Odor Filter Kit

    Joy C.
    Filter kit works!

    We love Modkat! We have two litter boxes and buy all the supplies from Modkat. Love their products!

    Kellie P.
    Can't Rate a Product You Don't Receive

    Have yet to receive this package and Modkat support is non-existent.

    Hi Kellie, our apologies your package has not yet arrived! The tracking shows there was a delay in transit, however your order is scheduled for delivery this afternoon. We have followed up via email, please email us at support@modkat.com if any further assistance is needed. Thanks for your patience, we hope you and kitty enjoy!


    Haven’t noticed a difference in odor control.

    Hi Cheryl, for optimal performance please be sure to place filter under direct sunlight (2-3 hours per side) monthly. The filters can be recharged up to 3 times before they need to be replaced. With proper care, the two Modkat Bamboo Charcoal Filter packs can last up to a year. When the filter is finished, the granules can be recycled into plant soil.

    Marco A.
    Great product - works well!

    These filters are a great product and work just as advertised!