Think Crucial Replacement for Rabbit Air Air Filter & Carbon Filter Kit Fits BioGS, BioGP SPA-421A & SPA-582A HIGH QUALITY AIR FILTER that can replace your Rabbit Air Purifier Filter. Get back to breathing clean air again! HEALTHIER LIFESTYLE! No one wants to breathe in dirty air and if you don't clean your air filter that will be exactly what you'll be doing! Replacing your filter will help clean your air and allow for a healthier lifestyle! This filter fits Rabbit Air BioGS / BioGP SPA-421A & SPA-582A air purifiers. SAVE MONEY by using a new air filter! When your Rabbit Air has a clogged or dirty air filter it can cause it to work harder which will end up hurting your electric bill! EASY TO INSTALL so you can get back to breathing clean air as soon as possible! Simply remove your old filter and put this brand new one in it's place! Approximate dimensions of the air filter are 15.75"W x 11.75"H x 1.28"D Approximate dimensions of the carbon filter are 15"W x 11.25"H x 0.63"D. GUARANTEED SATISFACTION because of a 30 day full money bank guarantee and a trusted Think Crucial warranty. We are so confident in our products that we have no problem giving you every penny back if you're unhappy with your purchase. You won't see promises like that from big box brands!