Rabbit Air BioGS 2.0 Replacement Filter Set - HEPA & Carbon Air Purifier Filters Compatible with SPA-550A & SPA-625A Models - Improves Indoor Air Quality for Allergies & Pet Owners

I just ordered another set of these to replace the last. Yes, the last set I bought were a tight fit compared to those that came with the original product but they seem to have worked fine. In fact, I think there is even more dust in the filter than the original. Maybe because the air cannot get around the filter because of the tight fit?? Anyway, I’m going with this generic brand again. Original rabbit filters are too expensive.You can literally see less dust in the air. When you clean the pre-filter there is a lot of gray matter dust every couple of month. I weighed the New HEPA filter vs. Old and there was nearly 10grams of dust captured in the HEPA filter. So these work and the Rabbit Air 2.0 works very well at cleaning household air and dust.For the price, I'm not even worried of this isn't as turkey effective as the OEM.The dimensions are a bit oversized and you'll need to squeeze the filter into place.The foam gasket is not as well made as the OEM, but it works well enough.They work but are a fraction to tight. Have to work to get them installed properlyWhen I bought these it stated that they were compatible with my filters but apparently not. Someone should look into fixing this problemThese are very good quality and more economical than other brands. I will not hesitate to purchase again.Easy to install, and can be cleaned.Will purchase againExact fit for way less money.