GREAT VALUE: This is a True HEPA Filter replacement for air purifier, to help effectively filter airborne particles for healthier living. Approximate dimensions are: 16 x 12 x 2 inches. GREAT VALUE: This is a True HEPA Filter replacement for air purifier, to help effectively filter airborne particles for healthier living. Approximate dimensions are: 16 x 12 x 2 inches. COMPATIBILITY: Compatible with RabbitAir BioGS Ultra Quiet air purifiers models SPA-421A and SPA-582A. Please note that this is a replacement product, not an OEM product. GREAT AIR QUALITY: High-Efficiency Particulate Air (HEPA) design will capture very fine airborne elements. HEPA filtration is essential for air quality control. USED BY PROFESSIONALS: LifeSupplyUSA Air Purifier Filters are made to be durable & efficient for months. SAVE MONEY by ensuring the maximum airflow supply volume & protecting your device. SIMPLE TO INSTALL: Installation is easy; no tools required. Simply remove and replace from your