Best Blue Cartridge Pool Filters in 2026

Easy to use - simply replace the old cartridge with a new one every two weeks, Double insulated pump

The number on the actual item seen in the image is 637R, is the component part number that corresponds to the individual part for the system and this does not pertain to the model No. 56637EG.

Air release valve for air trapped inside filter chamber. we do not suggest operating the pump for more than 8 hours per day

KEEP POOL OR SPA FRESH: The S1 Cartridge Filter is sure to keep your PureSpa Jet Massage water clean and fresh

MULTI PACK: 6-pack of Intex Type S1 filter cartridges

ULTIMATE FILTRATION: Made with easy to clean, heavy duty Dacron paper for the ultimate filtration

✅ REPLACEMENT FILTER - Get purer, cleaner water in your pool or spa with these replacement cartridge filters compatible for Unicel C-4325, C-4326, Filbur FC-2390, and Pleatco PRB50-IN and PRB68. See below for alternative filter names.

✅ DIMENSIONS - This replacement pool filter cartridge has an open 2 1/8 inch (2.125") top, 2 1/8 inch (2.125") open hole bottom, 5 inch (5") diameter and 13 5/16 inch (13.3125") length. The filter material is made of USA made premium spunbond trilobal filter material for better filtration.

✅ MULTI PACK SAVINGS - Choose from our value savings single, double or 4 pack filter bundle. Having multiple filters on hand can help extend the life of each and protects your pool or spa because you can keep 1 filter active while cleaning the other for zero filtration downtime.

Made in USA with high quality filtration media that was made specifically for durability and cleanability. Includes support bands around each cartridge element.

Pentair CCP420 Cartridge (Filter PN 160301), Waterway Crystal Water 105 SQFT (817-0106)

Inside Diameter: 3", Outside Diameter: 7”, Length: 26-1/16”

【Type S1/29001E replacement cartridge】 Compatible for ALL Intex PureSpa models including 28403E, 28407E, 28413E, 28421E, 28423E, 28425E, 28427E, 28439E, 28441E, 28443E, 28453E and 28481E; PureSpa Plus Model 28429E, 28431E. Size: 4.2 x 2.8 inches.

【Supreme Spa Experience】 Our Type S1 replacement filter could keep the water in your hot tub crystal-clear and give your spa pump its best performance. POOLPURE high-quality spa filters are the best patner of your hot tubs.

【Powerful Filtration Performance】 Innovated "Dirt-Locking" technology makes the fabric trap much more contaminants than regular fabric. Our POOLPURE spa filters could efficiently remove hair, leaves, dust, sediment, sand, etc. Just enjoy your tub-time!

Keep your pool clean and clear all season long

Intex recommends replacing this filter cartridge as often as every 2 weeks for peak pump performance

Extend the life of this filter by periodically hosing it down until it shows signs of wear and deterioration

SET INCLUDES-4 Intex Type-A and C filter cartridge replacements for 603&604/G-635T&636T/G-637R&638R/G-CS7111 & CS7221/7231-EC07111 & EC07221 & 7231 Krystal Clear filter pump. 2 Sewanta floating sponges will save the filter life by collecting oil. Flip the pleats on the cartridges to the side that matches the model you own.

POOL MAINTENANCE-Ensures your pool water is clear of debris and gunk that build up over time. Collects and removes chemicals and metals such as copper, excess chlorine, sunscreen, deodorant, and hair-care products.

DURABLE MATERIAL-Crafted of a heavy-duty Dacron-blend material—polypropylene and Dacron plastic fibers. The thick paper it’s constructed of has tight pleats for superior filtration. Filters 1,500 gallons of pool water per hour.

QUALITY REPLACEMENT FILTER: High quality 65 square foot filter media replacement cartridge that is made in the USA

GOOD REPLACEMENT FOR: Replaces Caldera Spas 76136; Hot Springs Spas 31114, 71827, 71828; and Tiger River Spas 31114

PLEAT COUNT: This replacement cartridge has a pleat count of 234

Compatible Models: Replacement for Dimension One 1561-00, Pleatco PDO75-2000, Filbur FC-3059, Unicel C-7367, Excel Filters XLS-7005, Aladdin 17541, Baleen AK-60035, 710-215, 01561-00-A, CCP319 filtration cartridges

Keep the Water Clean: The pleated fabric filter maximizes contact between contaminants and filter media, allowing for greater capacity and contaminant reduction.The durable & washable 75 sq ft fabric has tight porosity and a dense weave which sifts out unwanted hair, leaves, dust, sediment, sand, etc. with a high strength, high flow design.

Fit and Dimensions: The cartridge is designed for systems that use a 7 1/4 Inch (Outside diameter) x 10 5/8 Inch (Length) spa or pool filter.

Lid assembly replacement

Fits Pentair Clean & Clear predator pool and spa cartridge filter

Fits with 50, 100, 125 square feet filters

【NSF/ANSI 50 Certified】 Poolpure Pool and Spa filter is tested and certified by IAPMO against NSF/ANSI 50. Poolpure filter delivers clear purified water to inspire the highest sense of happiness. Enjoy your unique leisure time.

【Compatible Models】 Filtration Area: 150 sq. ft.; Length: 31 1/8"; Outside Diameter: 10 1/16"; Top & Bottom Opening: 6". PLF150A Pool Filter compatible Pentair Clean and Clear 150, Posi-Clear PCRP150, R173216, 59054300, PAP150-4, Unicel C-9415, Filbur FC-0687, Aladdin 25005. NOTE: This is a compatible spare part and the manufacturers' names and part numbers have been used for reference purposes only. POOLPURE is an independent brand.

【100% Money-Back Guarantee】Six-Months Return Policy Guaranteed! Product Life Time Warranty on Every Filter Confirmed With Defects in Material and Workmanship Within Each Filter's 12 Months Service Life. We promise a risk-free shopping experience backed up with our reliable Quality Control, Customer Service and Technical Support Team which is located to Los Angeles.

Pack of 6 Bestway type III/A replacement filter cartridges replaces old and worn-out filter cartridges to keep your pool clean

For use in 500/800/1500 gallon filter pumps, providing a versatile replacement for multiple size pumps

Replace cartridge regularly every 2 weeks to ensure the long life of your Bestway pool and filter pump

NIOSH-APPROVED OV/AG/P100 RATING filters at least 99.97% of solids and liquid aerosols, as well as oil-based particulates

FOR WORKPLACE/OCCUPATIONAL USE ONLY

OIL PROOF (Use according to manufacturer’s time use restrictions when oil aerosols are present)

Deep-Cleans pleated spa/pool filter cartridges

Professional strength with enzymes

2 x 1 lb. bottles

Type B/ Intex 29005E replacement cartridge for pool filters. Size: 5.75 x 10 inches.

HIGH QUALITY FILTER CARTRIDGE: Keep your pool water crystal clear and give your swimming pool pump its best performance with the filter Cartridge Type B.

POWERFUL FILTRATION PERFORMANCE: Innovated "Dirt-Locking" technology make the fabric traps much more contaminants than regular fabric. This filter efficiently removes hair, leaves, dust, sediment, sand, etc. Enjoy clean leisure time in your pool and spa.

【SIZE】 Length 13 5/16'' ;Out diameter 5'' ;Bottom hole 2-1/8'' ;Top hole 2-1/18'';Filtration Area: 25 sq. ft.

【REPLACEMENT MODELS】Unicel C-4326, FC-2375 , PRB25-IN,303909, M-4326, 8172500, R173429,5X13 Drop in hot tub filter,Note: this is a compatible spare part. The manufacturer’s name and part number have been used for reference purposes only. CRYSPOOL is an independent brand.

【QUALIFIED MATERIAL】 The advanced material of trilobal fibers is utilized. Cutting-edge technologies make the capacity higher than common point-bond fabric. It makes water filtration more thoroughly and service life longer.

【NSF/ANSI 50 CERTIFIED】 TOREAD Pool and Spa filter is tested and certified by IAPMO against NSF/ANSI 50. The filter with certified safe materials provides you with clean, fresh and clear water. Only select certified filters for your family to ensure the safety, health and happiness of your loved ones.

【COMPATIBLE MODELS】 Filtration Area: 4X105 sq. ft.; Length: 26"; Outside Diameter: 7"; Top & Bottom Opening: 3". TRF-7471 Pool Filter compatible Pentair CCP420, 160301, Waterway Crystal Water 425, 570-0425-07, SD-00163, AK-60431, Aladdin 20503, Filbur FC-6470. NOTE: This is a compatible spare part and the manufacturers' names and part numbers have been used for reference purposes only. TOREAD is an independent brand.

【REINFORCEMENT STRUCTURE】With 25% thicker filtration fabric, heavy chlorine resistant and break-resistant end caps and reinforced center support, the filter delivers high powered propulsion flow, and crystal clear water, providing you with a relaxed and healthy enjoyment.

Intex 2800 GPH Above Ground Pool Sand Filter Pump

Simple to use and easy to operate sand filter pump that will outperform your standard cartridge filters

6-function control makes maintenance easy, giving options to backwash, rinse, recirculate, drain, filter, and close the system

A Perfect Fit: Our type VI SPA filters measure is 4.1”x 3.1”and Compatible with Bestway, Lay-Z-Spa, Coleman, SaluSpa and all other Type VI filter inflatable hot tub.

Quality Priority: The type VI spa filters cartridge for the pool adopts a densely trilobal structure fabric that captures 3x more contaminants than regular fabric. VI filters for inflatable hot tub assure you of safe and no-worry happy times.

Great Filtration Performance: Premium quality Dacron fabric collects hair, leaves, dust, sediment, sand, etc. The pool filter VI is committed to keeping your pool / spa water crystal clear and give your swimming pool pump its best performance. A dense pleating structure provides a larger filtration area than the common filters of the same size and makes the filtration higher efficient, bring you ultimate experience in your pool and spa time.

COMPATIBILITY: The type VI spa filter is compatible with Bestway Lay-Z-Spa, SUNSET FILTERS VI, Volca Spares Size VI, POOLPURE PLF-INTV1 Spa Filter and Coleman SaluSpa 90352E, 58323E, 58323 Filter Pump.

VALUE PACKAGE: Including 12 Premium Quality type VI spa filters, Length: 3.1”, Outside Diameter: 4.2”, Top: 2" open, Bottom: 2" open.

PREMIUM QUALITY: The type VI spa filters cartridge for the pool adopts a densely trilobal structure fabric that captures 3x more contaminants than regular fabric. VI filters for inflatable hot tub assure you of safe and no-worry happy times.

✅ Filters May Be Green or Blue ✅ REPLACEMENT FILTER - Get purer, cleaner water in your pool or spa with these replacement cartridge filters compatible for Pleatco: PSD85-2002, Unicel: C-8380, Filbur: FC-2810. Check below for alternate filter names. Filters May Be Green or Blue

✅ DIMENSIONS - Diameter: 8 1/2" Length: 14" Top: 2" SAE (Closed) Bottom: 2 1/2" tapered

✅ MULTI PACK SAVINGS - Choose from our value savings single, double or 4 pack filter bundle. Having multiple filters on hand can help extend the life of each and protects your pool or spa because you can keep 1 filter active while cleaning the other for zero filtration downtime.

【Perfect Match】Compatible with Pentair Clean & Clear Plus 320/160340/178580 pool filter. Replacement for Pleatco PCC80/PCC80-M/PCC80-PAK4, Pentair R173573, Unicel C-7470/C-7470RA, Filbur FC-1976/FC-6465 and more. All manufacturers' names and part numbers are used for compatibility information only.

【Dimension】With an outer diameter of 7'', inner diameter of 3'' and a height of 20-1/16'', our filter cartridge can be easily installed in your filter without worrying about leaks or compatibility issues.

【Powerful Filtration】Made from ultra-fine and heavy-duty paper with more pleats, it maximizes filtration efficiency, easily removes debris, and keeps your pool clean at all times.

【High Quality Filter Cartridge】 Keep your pool water crystal clear and give your swimming pool pump its best performance with the filter Cartridge Type A or C.

【Compatible with type A or C filters】Size: 8X4.2 inch. Replaces Intex 29000E filter cartridge and fits any filter pump that uses Intex 59900 filter cartridges. This cartridge is compatible for use with Intex filter pump unit models 28603EG, 28637EG, 28635EG, 28671EG, 58603E, 58604E, 56635E, 56636E, 56637E, 56638E and 58623. It also fits Krystal Klear 02 and 12R pump models.

【Powerful Filtration Performance】 Innovated "Dirt-Locking" technology make the fabric traps much more contaminants than regular fabric. This filter efficiently removes hair, leaves, dust, sediment, sand, etc. Enjoy clean leisure time in your pool and spa.

High quality OEM replacement Intex filter cartridges

Features easy to clean Dacron filter material

For best filtering results, replace your filter cartridge every two weeks

✔ HYDRO AERATION TECHNOLOGY BY INTEX -– Transforming the Above Ground Pool industry, by bringing revolutionary water aeration benefits such as improved circulation and filtration, improved water clarity, increased negative ions at the water surface

✔ EASY INSTALLATION -– Just hook up hoses and plug in! This pump is a must have for any INTEX above ground pool up to 15,200 gal (Partial assembly required)

✔ EASY-TO-CLEAN CARTRIDGE -– The C2500 Krystal Clear Cartridge uses Type B filter cartridges (Item #29005E) which should be changed every 2 weeks; the Type B filter cartridge is made with easy-to-clean Dacron paper for ultimate filtration

Sundance Spas Microclean Inner Filter - 6473-164

Inner Filter is used on Sundance Spas 880 Series Spas

Inner Filter used with 6473-165 Outer Filter

Center core replacement

Fits Pentair Clean & Clear and Clean & Clear Predator 150, 175 and 200-square feet pool/spa cartridge filters

Measures 14-inch length by 41-1/2-inch height by 14-inch width

Pleatco Pure Premium Pool & Spa Filter Cartridges

Cleaner water,less energy, Longer life.

Replaces Unicel C-4326/Filbur FC-2375/Rainbow Dynamic 25

DESIGNED AND BUILT FOR LONG LIFE AND USE: The Aqua Comb body is made of UV protected ABS plastic and the comb and barrel valve are UV protected nylon

FULLY CLEAN YOUR POOL FILTER: Only device that fully cleans a deep pleated cartridge filter used by pool services and homeowners

REMOVE PARTICLES FROM POOL FILTER: Removes debris and dust from desert storms and marcite repairs. The Aqua Comb also has a 304 S.S. 30 mesh screen hose seal to avoid clogs

GREATER CAPACITY: The Hayward StarClear 50 sq. ft. pool filter offers extra cleaning capacity for crystal-clear water

ROBUST DESIGN: Features an extra-large single-element cartridge for additional durability and maximum water flow

WON'T CORRODE: Injection-molded filter tank provides reliable, corrosion-free performance