We use cookies to make your experience better. To comply with the new e-Privacy directive, we need to ask for your consent to set the cookies. Learn more.
Undersink Water Filters
Undersink filters are a point of use option for quality water filtration. A quickly evolving field in water filtration, under-sink systems are becoming more sleek and compact while replacement filters are becoming smarter and more adaptable, some featuring turn to lock installation and other quick change options. No matter what room you designate the filter for it will allow you to provide filtered fresh water right from the faucet. Enjoy better tasting water with Tier1 today!
AP117 Comparable Tier1 Granular Activated Carbon Replacement Cartridge
Fits most whole house water filter systems that uses standard 10 x 2-1/2 filter cartridges The solid core of the filter may inhibit it from fitting in some housing caps and sump posts.Price $15.99 List Price Price $22.99 Save 30%
ECP1-10 Pentek Comparable Tier1 Whole House Filter Replacement Cartridge
Fits most 10x2.5 housingsPrice $10.99 List Price Price $15.99 Save 31%
US-UF-100-CBRF Tier1 Ultra-Filtration Hollow Fiber Water Filter System Replacement Carbon Filter Cartridge
Fits the 4-Stage Ultra-Filtration Hollow Fiber Drinking Water Filter System by Tier1Price $31.76 List Price Price $44.99 Save 29%
US-UF-100-SDRF-5 Tier1 Ultra-Filtration Hollow Fiber Water Filter System Replacement Sediment Filter Cartridge (5 Micron)
Fits the 4-Stage Ultra-Filtration Hollow Fiber Drinking Water Filter System by Tier1Price $23.98 List Price Price $33.99 Save 29%
US-UF-100-SDRF-1 Tier1 Ultra-Filtration Hollow Fiber Water Filter System Replacement Sediment Filter Cartridge (1 Micron)
Fits the 4-Stage Ultra-Filtration Hollow Fiber Drinking Water Filter System by Tier1Price $24.28 List Price Price $34.99 Save 30%
US-UF-100-RM Tier1 Ultra-Filtration Hollow Fiber Water Filter System Replacement Membrane
Fits the 4-Stage Ultra-Filtration Hollow Fiber Drinking Water Filter System by Tier1Price $59.85 List Price Price $85.99 Save 30%Free Shipping
10 inch x 2.5 inch Tier1 (5 Micron) Pleated Sediment Water Filter
9 7/8 inches by 2.5 inches, 5 micron. Fits into systems that use Liquatec SPF-25-1005, Pentek 255482-43 and Watts FM-5-975 water filtersPrice $9.99 List Price Price $13.99 Save 28%
10 x 2.5 Inch Tier1 10 Stage Countertop or Undersink Filter Cartridge Replacement
This 10 x 2.5 standard cartridge size can fit in standard 10 x 2.5 housings!Price $28.99 List Price Price $41.99 Save 30%
RO-QC4-SDRF Tier1 4-Stage Reverse Osmosis System Replacement Sediment Filter
Designed to fit the Tier1 RO-QC-450, QCRO, and QCUF Reverse Osmosis SystemsPrice $26.99 List Price Price $38.99 Save 30%
RO-QC-450-CBRF Tier1 4-Stage Reverse Osmosis System Replacement Carbon Block Filter
Designed to fit the Tier1 RO-QC-450, QCRO, and QCUF Reverse Osmosis SystemsPrice $31.99 List Price Price $45.99 Save 30%
RO-QC4-RORM Tier1 4-Stage Reverse Osmosis System Replacement Membrane
Designed to fit the Tier1 RO-QC-450, QCRO, and QCUF Reverse Osmosis SystemsPrice $54.99 List Price Price $78.99 Save 30%Free Shipping
TROM-50 Tier1 Replacement Reverse Osmosis Membrane (50 GPD)
Fits most residential RO systems with 50 gallons per day of flow ratePrice $27.99 List Price Price $39.99 Save 30%
