Whole House Water Filter Cartridge 4.5x20 GAC Carbon

Whole house water filter replacement cartridge improves taste and odor fast by reducing chlorine and common chemical contaminants across your entire home. Built with granular coconut shell activated carbon (GAC), this universal 4.5" x 20" cartridge fits most standard big blue housings for quick, tool-free swaps. High-adsorption micro-pore media supports cleaner-smelling water for showers, laundry, cooking, and drinking—ideal for households tired of chlorine smell and off-tasting tap water.

• Delivers fresher-tasting water by reducing chlorine, chemical taste, and odor at the point of entry.


• Fits most standard 4.5" x 20" whole home filter housings for an easy replacement with no modifications.


• Includes GAC granular coconut shell activated carbon for strong adsorption and consistent performance.


• Handles high demand with up to 100,000-gallon capacity and maintains smooth water flow.


• Reduces maintenance with a 9–12 month service life (varies by water quality and usage).

Upgrade your whole home water filtration system with a dependable carbon cartridge designed for everyday comfort—less chlorine smell, cleaner-tasting tap water, and better overall water experience throughout the house. The glue-free, adhesive-free construction helps minimize unwanted odors and supports cleaner output, making it a smart choice for routine system maintenance. If your current filter is past due or your water has started to taste or smell off, swap it now and keep your system performing as intended. Grab yours today.

• Type: Whole house replacement filter cartridge (GAC activated carbon)


• Size: 4.5" x 20" (approx. 115 x 115 x 507 mm / 11 x 51 cm)


• Filter media: Granular coconut shell activated carbon


• Capacity: Up to 100,000 gallons


• Service life: 9–12 months (dependent on water conditions)


• Quantity: 1 cartridge


• Net weight: 3.7 lb (1.7 kg)