Replacement Filter Cartridges

If you find your water flow rate slowing down its a sign you need to replace your filter cartridges. Tier1 offers an assortment of replacement cartridges coming in all standard sizes to fit any housing system you have installed. Replacement cartridges and kits help ensure that your system is up and running at top performance and reducing the unwanted contaminants that find their way into your water. Used in a variety of applications ranging from pre-filtration to single system protection, our filters are tested to reduce contaminants that would cause harm to your home and health. Ensure your filters are performing optimally with Tier1 and let us protect every drop.

Iron and Lead Reducing Tier1 Whole House Replacement Water Filter

Fits 20 x 4.5 inch Big Blue filter housings.

Price $64.99 List Price Price $84.49 Save 23%
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Iron and Manganese Reducing Tier1 Replacement Water Filter

Fits 20 x 4.5 inch Big Blue filter housings

Price $48.99 List Price Price $63.69 Save 23%
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10 Micron Tier1 Carbon and Anti-Scale Water Softening Replacement Cartridge

Fits most standard 20-inch slim filter housings

Price $28.99 List Price Price $37.69 Save 23%
1 Micron Tier1 Carbon and Polyphosphate Water Softening Replacement Cartridge

Fits most standard 20-inch slim filter housings

Price $19.99 List Price Price $25.99 Save 23%
5 Micron Tier1 Carbon and Polyphosphate Whole House Softening Replacement Cartridge

Fits most standard 20 inch slim filter housings

Price $17.99 List Price Price $23.39 Save 23%
RFC-93 Pentek Comparable Tier1 Replacement Water Filter

Fits most 10 x 2 1/2 inch filter housings

Price $17.99 List Price Price $23.99 Save 25%
P1 Pentek Comparable Whole House Sediment Water Filter by Tier1

Fits most standard 10 x 2.5-inch housings

Price $5.99 List Price Price $7.99 Save 25%
C1 Pentek Comparable Tier1 Carbon Block Water Filter

Fits into most industry standard 10-inch water filtration system housings

Price $12.99 List Price Price $18.99 Save 31%
RFC-20BB Whole House Filter Comparable Tier1 Replacement Cartridge

Fits most 20X4.5 housings

Price $34.99 List Price Price $56.99 Save 38%
PD-25-934 Pentek Comparable Tier1 Whole House Water Filter

Fits

Price $3.99 List Price Price $7.34 Save 45%
10 inch x 4.5 inch Tier1 Whole House Sediment Water Filter (1 Micron)

Fits most 10 x 4.5-inch filter housings

Price $8.99 List Price Price $16.99 Save 47%
Omnifilter CB3 Comparable Tier1 Carbon Block Whole House Water Filter

Fits the OmniFilter U30 Filter Housing.

Price $11.99 List Price Price $36.99 Save 67%