Top 10 Reverse Osmosis Water Filtration System Replacement Filters – Replacement Under-Sink Water Filters

As an Amazon Associate I earn from qualifying purchases.

1. APEC Water Systems


APEC Water Systems FILTER-SET-ES High Capacity Replacement Pre-Filter Set For Essence Series Reverse Osmosis Water Filter System Stage 1-3

APEC Water Systems #ad - 2nd & 3rd stage 10 micron extruded carbon block filters to remove chlorine, taste & odor. Apec water essence series filter-set-es is for roes-50, roes-phuv75, roes-ph75, roes-uv75-SS and ROES-UV75. Includes 1 sediment and 2 carbon block filters to protect and extend the life of the RO system. 1st stage 5 micron Polypropylene sediment filter to remove dust, particles and rust. High performance replacement filters are compatible with all standard sized under counter RO systems.
BrandAPEC Water Systems #ad
ManufacturerAPEC Water Systems #ad
Height10 Inches
Length2.5 Inches
Weight2 Pounds
Width7.5 Inches

2. Puroflo


Reverse Osmosis Under-Sink Drinking System Filtration Kit by PUROFLO, 5-Stage 1-Year, 5 pc RO Water Filter Replacement Set

Puroflo #ad - Does not include 5th stage quick-connect fittings. Our products are certified by NSF. 50 gpd 5 stage system delivers high quality, clean, crisp tasting water that tastes superior to bottled water. Puroflo ultimate high capacity 5-Stage complete filter set guarantees cleaner water for your health. Compatible with most 10’’ filter housing. Removes up to 99% of contaminants. An affordable alternative for APEC, iSpring, Watts and more. Includes 1 x sediment filter, 1 x in-line carbon, 2 x Carbon Filter, and 1 x membrane. Easy, do-it -yourself installation within typically an hour.
BrandPuroflo #ad
ManufacturerGeneral Water Solutions #ad

3. SimPure


SimPure 5 Stage Reverse Osmosis Replacement Filter Set with 75 GPD RO Membrane, 5pc Pre & Post Replacement Cartridge Pack Kit for Standard 5-Stage Reverse Osmosis RO Systems

SimPure #ad - Pre-carbon filter: 5 micron granular activated carbon and activated carbon block filters protect your system from chlorine damage and remove volatile organic chemicals. Reverse osmosis membrane: the 75 gpd ro membrane is specially designed with density graded layers of filtration to filter the hardest to remove contaminants like dissolved solids, microplastics, and more.

Post-carbon water filter: as the final stage of filtration in your system, this post activated carbon water filter built-in 1/4 inch JG quick connections in both two ends removes any remaining contaminants while enhancing the flavor of drinking water. Sediment water filter: works as the first barrier in the reverse osmosis system by removing solid particles like rust, sand, dirt and silt from the water and reducing a significant percentage of contaminants in the water. Improves the taste of the water and extends RO membrane's life. It is tested by independent third-party to meet NSF/ANSI 58 standrad, Heavy Metals, fluoride, ensure safety and non-toxic.

Items with a new or old label randomly sent. Note: apec roes-50, such as simpure t1; apec water systems ro-90, roes-uv75, express water RO5DX and most iSpring systems with screw-in inline filter require separate purchase of a specific adapter which is NOT included. This prevents the other filters from getting clogged with fine particles and reduces the risk of damage to the other parts of the filtration system. Compatibility: compatible with most 10" standard under the counter reverse osmosis water systems, roes-ph75 and most standard 5 or 6 stage rO systems uses push fittings on the final stage filter.
BrandSimPure #ad
ManufacturerSimPure #ad
Part NumberRSWF001Z_S8
WarrantyManufacturer warranty for 90 days from date of purchase.

4. iSpring


ISpring F7-GAC for Standard 5-Stage Reverse Osmosis RO Systems 1-Year Replacement Supply Filter Cartridge Pack Set

iSpring #ad - Enjoy crystal clear ice cubes, safe, fresher tea and coffee, better tasting foods, healthier baby formula – even better than most bottled water. This filter pack does NOT include an RO membrane.

Individually wrapped 1-year high capacity filter replacement cartridge pack for most standard 5-stage RO systems. Experience clean, and good-tasting water every time you turn on the faucet. 5" replacement water filters included: 2x sediment filters, 2x carbon block filters, 2x granular activated carbon filters, and 1x post-carbon filter. If you have trouble installing the filters, please refer to the user manual or contact us. Updated ft15 post-carbon filters are built with a secure push-fit quick connection, which allows faster filter replacement. 7 pieces of 10" x 2.
BrandiSpring #ad
ManufactureriSpring #ad
Height3 Inches
Length10 Inches
Weight1 Pounds
Width3 Inches
Part NumberF7RO

5. Brondell


Brondell H2O+ Circle Sediment and Carbon Replacement Filter Pack RF-20

Brondell #ad - Replacement sediment and carbon filter set for the Brondell Circle reverse Osmosis system. Quick change filters - twist and seal filters make filter replacement a breeze. Replacement set contains a set of 3 filters: Sediment, Pre-Carbon Plus, and Carbon Block filter. Filter set for the Brondell Circle reverse osmosis water filter system. Gold seal certified by WQA Water Quality Association for trusted performance.
BrandBrondell #ad
ManufacturerBrondell #ad
Height11.25 Inches
Length2.75 Inches
Weight2.6 Pounds
Width8.25 Inches
Part NumberRF-20
WarrantyLimited lifetime - manufacturer.

6. APEC Water Systems


APEC Water Systems ROES-50 Essence Series Top Tier 5-Stage Certified Ultra Safe Reverse Osmosis Drinking Water Filter System

APEC Water Systems #ad - System comes with 100% lead-free designer faucet, plus Certified JG Food grade tubing and parts to provide safe, contamination-free pure water. Pipe size: 1/4 inches. America's no. 1 rated water filter brand with 20 years of success guaranteeing trouble free, noise-free system for long lasting, dependable, pure drinking water.

2 year extended manufacturer warranty with registration. Feed water pressure 40-85 psi. Premium long-lasting filters used to treat tap water, well water. Provide unlimited clean, refreshing crisp tasting water superior to bottled water. Max total dissolved Solids - 2000 ppm. Wqa certified system. Only technology to remove up to 99% of contaminants such as chlorine, nitrates, VOCs, taste, odor, arsenic, lead, as well as toxic fluoride, heavy metals and 1000+ contaminants.

Supreme quality - designed, engineered, and assembled in USA to guarantee water safety & your health. High quality leak-free quick connect fittings require no extra lock clips to seal leak, and does not rely on water leak detector to protect your home like other brands. System comes with all parts and industry's best instructions and videos for an easy DIY experience.
BrandAPEC Water Systems #ad
ManufacturerAPEC Water Systems #ad
Height17.5 Inches
Length16 Inches
Weight25 Pounds
Width5.25 Inches
Part NumberROES-50-A
Warranty1 Year APEC

7. Whirlpool


White, Whirlpool WHER25 Reverse Osmosis RO Filtration System With Chrome Faucet | Extra Long Life | Easy To Replace UltraEase Filter Cartridges

Whirlpool #ad - Better than bottled water — reverse osmosis filtered water tastes better than bottled water — Convenient, unlimited and refreshing, and for a fraction of the cost of bottled water.

Save space — our 3-stage system does as well or better than competitors systems despite their 5 and 6-stage filters, with fewer filters to replace! Extra long filter life — Get clean, fresh-tasting water with fewer filter changes and a membrane that lasts for years. Safer drinking water — reduce chlorine taste and odor, chemicals, cysts, lead, sediment, and dissolved solids that show up in unfiltered tap water. Change your filter in seconds — Ultraease Technology allows for easy and hassle-free filter changes with no open sumps.
BrandWhirlpool #ad
ManufacturerKX Technologies #ad
Height13 Inches
Length4.7 Inches
Width12.2 Inches
Part NumberWHER25

8. iSpring


NSF Certified, 6-Stage Superb Taste High Capacity Under Sink Reverse Osmosis Drinking Water Filter System with Alkaline Remineralization-Natural pH, iSpring RCC7AK, White

iSpring #ad - Benefits: the ispring rcc7ak water softener includes an additional sixth stage - an alkaline remineralization filter which restores healthy minerals and produces a balanced alkalinity, which gives your water a more natural taste than regular 5 stage RO water filter; the RO membrane removes not only harmful pollutants but also a few helpful minerals. 0001 microns; fine gac filter to provide final polishing to the purified water and AK filter to finally restore just the right proportion of healthy minerals and a natural alkaline balance.

For leak-free installation, simply push tubing ½ inch deep into quick-fitting connectors and lock; no threading pipes needed. Features: beautiful european-style kitchen faucet. 1 rated reverse osmosis systems in the usa backed by ispring extended manufacturer upon registration and lifetime personalized support from GA, USA, this water filter is to deliver endless bottled quality drinking water right in your home for many years to come, combined with premium quality components, eliminating plastic bottles. Transparent 1st stage housing for easy visual inspection. Certified to nsf/ansi 58, calcium, lead removes up to 98%, pure and healthy drinking water by removing up to 99% of over 1, arsenic, 6-stage alkaline remineralization layered filtration: exclusively designed to restore the natural alkalinity and mineral balance of water; this reliable and ultra-safe Reverse Osmosis RO water filtration system converts your water into clean, fluoride, asbestos, 000 harmful contaminants like chlorine, sodium and more.

Easy do it yourself installation: the water purifier is designed for do-it-yourself installation and all necessary parts for installation are included, instructional videos, backed by clear, well-organized written instructions, and access to iSpring unparalleled technical support.100% satisfied customers: rcc7ak from america’s favorite brand of under sink water filter is the No.
BrandiSpring #ad
ManufactureriSpring #ad
Height18 Inches
Length15 Inches
Weight20 Pounds
Width8 Inches
Part NumberRCC7AK

9. Whirlpool


WHAROS5 & WHER25 Filtration Systems|Easy To Replace UltraEase Filter Cartridges |Extra Long Life | 1 Filter , Whirlpool WHEERM Reverse Osmosis Replacement Membrane|Fits WHAPSRO, White

Whirlpool #ad - Easy change cartridge design: UltraEase Filter Replacement allows you to change membranes in seconds without turning off your water. Works with the wheerF Reverse Osmosis Replacement Filter Sets.

Long life for reduced costs: the wheerm membrane lasts up to 2 years — you may want to change it sooner depending on your water conditions. Fresh tasting water: the reverse osmosis Replacement Membrane cleans your water by removing lead, chlorine, sediment, cysts and other harmful chemicals that produce distasteful and smelly odors. Adaptable design: the wheerm replacement membrane fits the whapsro, wharos5 and WHER25 Reverse Osmosis Filtration Systems. Safer water for you and your family: our wheerm replacement membrane fits our most advanced filtration systems — This membrane is NSF certified to remove the 15 individual contaminants most commonly found in home water.
BrandWhirlpool #ad
ManufacturerWhirlpool #ad
Height2.5 Inches
Length9.75 Inches
Weight1.4 Pounds
Width2.5 Inches
Part NumberWHEERM

10. Watts Premier


Watts Premier WP500024 Standard Annual 7 Pack Replacement Filter Kit, White, 10.5" x 19.50" x 3" WPRL-58

Watts Premier #ad - Recommended replacement of sediment and Carbon Pre-filters every 6 months, and the GAC Inline Post-Filter once a year. Traps sediment and filters out materials to provide clean drinking water. Compatible with any standard 10” filter housing. Kit includes two 5 micron sediment filters 104017, four 5 micron carbon Pre-Filters 101009, and one 10" GAC Granular Activated Carbon Inline Post-Filter 560010 Nsf coconut shell activated carbon in all carbon filters. Designed for use with watts premier's ro-tfm-5sv, wP-ST6DM, WP-5 and WP5-50 Reverse Osmosis Systems.
BrandWatts Premier #ad
ManufacturerWatts #ad
Height10.5 Inches
Length18 Inches
Weight3.51 Pounds
Width2.5 Inches
Part Number500024