Catit Airsift Dual Action Pads combine the powerful Catit Magic Blue Ammonia Buster with the power of activated carbon, effectively locking in any nasty litter box odours. These filter pads are designed for use with Catit Airsift Hooded Litter Boxes, and should be replaced every 30 days for optimal results. Dual action odour reducing pad Combines Catit Magic Blue Ammonia Buster with activated carbon Quick and easy to install Compatible with Catit Airsift Hooded Litter Boxes One filter pad lasts for approximately 30 days Available in packs of 2 or 6
