Whole House Water Filter Cartridge 4.5 x 20, Iron Manganese

Whole house water filter replacement cartridge upgrades well water by reducing iron, manganese, chlorine taste, and odor for cleaner-looking, better-tasting water at every faucet. The universal 4.5" x 20" size fits most big-blue style housings, making swaps quick with no modifications. Ion-exchange resin targets rust-causing metals to help limit staining and buildup in pipes, fixtures, and appliances while maintaining steady flow.

• Reduces iron and manganese to help cut rust stains, discoloration, and metallic taste in well or tap water


• Fits standard 4.5" x 20" whole-home filter housings for a fast, no-fuss replacement


• Delivers up to 100,000 gallons of filtration capacity for fewer changeouts


• Helps improve odor and chlorine taste for more enjoyable drinking, cooking, and shower water


• Includes resin-filled cartridge made without glue or adhesives to support clean, fresh output

When iron and manganese build up, they can leave orange/brown staining, dull water color, and unwanted taste—especially with well water. This iron & manganese reducing cartridge is designed to restore clarity and help protect plumbing and water-using appliances by targeting the minerals that cause buildup. Replace on schedule to keep performance consistent; service life varies by water quality and usage. Grab yours today and keep your whole-home filtration system working like it should.

• Type: Iron & manganese reducing replacement cartridge for whole-house systems


• Size: 4.5" x 20" (11 x 51 cm); 115 x 115 x 507 mm


• Filter media: Iron & manganese removal ion-exchange resin


• Capacity: Up to 100,000 gallons (varies by water conditions)


• Service life: Up to 12 months (depending on water quality)


• Quantity: 1 cartridge


• Net weight: 7.7 lb / 3.5 kg