The product is a 2-Pack FLT4825 True HEPA Filter B replacement compatible with G-Guardian models. It includes 2 HEPA and 8 Activated Carbon pre-filters, made of H13 True HEPA and Carbon Filter material. The product dimensions are 16"L x 5.3"W x 3.6"Th, and it weighs 1.21 pounds. It does not require batteries and is not discontinued by the manufacturer.

compatible with AC4825, AC4300, AC4800, AC4900, AC4850, AP2200CA, and BXAP148