4 Big Blue Water Filters GAC Carbon & Sediment 4.5" x 10" Whole House Cartridges 4 Big Blue Filters for a Standard Size 10" Big Blue Housings. 2 Sediment 2 (GAC) Granular Activated Carbon Standard size filters 4.5 x 10 All our filters individually wrapped for freshness and protection while in shipment. Excellent to remove Sediment, Chlorine, Odors and many other chemicals and contaminants. Effectively eliminates many impurities from tap water to offer sparkling clean and great tasting water throughout your whole house.