Idea-systems.net is reader-supported. When you buy through links on our site, we may earn an affiliate commission. Learn more

Top 10 Best Hot Tub Filters in 2021 - Comparisons & Top Picks

With our efforts in researching and evaluating product quality, we experts have ranked the top 10 the Best Hot Tub Filters. With support from 10 customers' reviews, the list below will assist you to find out the right one

$46.99
in stock
1 used from $40.00
as of December 5, 2021 11:53 pm
Amazon.com
$46.00
$90.00
in stock
2 new from $46.00
1 used from $41.57
as of December 5, 2021 11:53 pm
Amazon.com
$39.99
in stock
3 used from $35.87
as of December 5, 2021 11:53 pm
Amazon.com
$35.00
in stock
2 new from $35.00
as of December 5, 2021 11:53 pm
Amazon.com
$45.99
in stock
3 new from $45.99
as of December 5, 2021 11:53 pm
Amazon.com
$37.00
in stock
2 new from $37.00
as of December 5, 2021 11:53 pm
Amazon.com
$38.60
in stock
8 new from $38.99
as of December 5, 2021 11:53 pm
Amazon.com
Last updated on December 5, 2021 11:53 pm

The Best Red Riding Hood Costume Reivews

SUNSET FILTERS Type VI SPA and Hot Tub Filter Replacement Cartridge - for Coleman SaluSpa Filters, Bestway Filter, Lay-Z Spa, Intex (6-Pack)

$31.99  in stock
Amazon.com
as of December 5, 2021 11:53 pm

Features

  • Sunset Filters Type VI Spa and Hot Tub Filter Replacement Cartridge compatible with Coleman SaluSpa filter , Lay-Z-Spa, Bestway, Intex and other inflatable hot tub filter - Fits all Spa Models Requiring Type VI Filters.
  • A Perfect Fit: Our type VI SPA filters measure 4.1” x 3.1” and are conveniently sold in 4 and 6 packs. For best results, clean your Spa filter cartridge replacement often and replace every 2–3 weeks during heavy usage.
  • High Filtration Performance: Premium quality Dacron fabric collects hair, leaves, dust, sediment, sand, etc is easy to clean and replace. The hot tub filter cartridge is installed inside the filter pump and captures dirt efficiently and is reusable.
  • Easy To Clean: Our type VI replacement Spa filters feature extra-durable plastic and quality Dacron fiber pleats. Our Spa filters for hot tubs are so easy to clean, so you can reuse them again and again. Enjoy clean leisure time in your pool.
  • It is recommended to change the spa filter regularly to maintain filtration efficiency, and to keep the water fresh and clean by adding the filter to the hot tub filter housing.

POOLPURE PLFPRB25-IN Hot Tub Filter Replace Unicel C-4326, Guardian 413-106, Filbur FC-2375, 3005845, 17-2327, 100586, 33521, 25392, 817-2500, 5X13 Drop in Spa Filter 2 Pack

$34.99  in stock
Amazon.com
as of December 5, 2021 11:53 pm

Features

  • 【NSF/ANSI 50 Certified】 Poolpure Pool and Spa filter is tested and certified by IAPMO against NSF/ANSI 50. Poolpure filter delivers safe and clear purified water to inspire the highest sense of happiness. Enjoy your unique SPA time.
  • 【Replacement Models】Length: 13 5/16”; Outside Diameter: 5”; Top Hole: 2 1/8” Open; Bottom Hole: 2 1/8” Open. PLFPRB25-IN filter compatible Pleatco PRB25-IN, Unicel C-4326, Filbur FC-2375, SD-00196, 303909, M-4326, 8172500, R173429. 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.
  • 【Easy Cleaning】The Trilobal Fabric Structure filter material makes it easy to release impurities when cleaning the filter, the filter is like a new one after cleaning. It is recommended that you clean cartridges every 2 weeks to maximize your spa's performance.
  • 【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 spa and hot tub.
  • 【Long Service Life】 Unique Trilobal Filtration Fabric Structure make it easier to capture large volume of contiminants. It is also easy to wash/clean to recondition the filter. This filter lasts for 1-2 years when proper maintenance is performed. We are committed to providing the best quality at good price.

POOLPURE Replacement for Spa Filter PWW50P3(1 1/2" Coarse Thread), Unicel 6CH-940, 817-0050, Filbur FC-0359, 25252, 378902, 03FIL1400, 45 sq.ft Screw in Hot Tub Filter, 2 Pack

$46.99  in stock
1 used from $40.00
Free shipping
Amazon.com
as of December 5, 2021 11:53 pm

Features

  • 【NSF/ANSI 50 Certified】 Poolpure Pool and Spa filter is tested and certified by IAPMO against NSF/ANSI 50. Poolpure filter delivers safe and clear purified water to inspire the highest sense of happiness. Enjoy your unique SPA time.
  • 【Replacement Models】 Length: 7 5/8"; Outside Diameter: 6"; Top: Circular Handle; Bottom: 1 1/2" SAE thread; Filtration Area: 45 sq. ft. PLF6CH-940 Hot Tub compatible PWW50P3(Not PWW50P4), Unicel 6CH-940, Filbur FC-0359, SD-00031, Waterway Plastics 817-0050, 25252, 378902, 03FIL1400, HTF0245RT. 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.
  • 【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 spa and hot tub.
  • 【Long Service Life】 Unique Trilobal Filtration Fabric Structure make it easier to capture large volume of contiminants. It is also easy to wash/clean to recondition the filter. This filter lasts for 1-2 years when proper maintenance is performed. We are committed to providing the best quality at good price.

Guardian Filtration Products 610-124-03 - 3 Pack Hot Tub & Spa Filter 610-124-03 Replacement for Pleatco PWK30, Unicel C-6430, Filbur FC-3915

$90.00
$46.00
 in stock
2 new from $46.00
1 used from $41.57
Free shipping
Amazon.com
as of December 5, 2021 11:53 pm

Features

  • ✅ REPLACEMENT FILTER - Get purer, cleaner water in your pool or spa with these replacement cartridge filters compatible for Pleatco PWK30, Filbur FC-3915, Unicel C-6430. Alternative filter names: 31489, 73178, Tri-X, 71825, 75041, 0969601, APCC7095, 13004, PKW30, APCC7095M, SD-01242, 090164824000, PWK 30, PDC510-AFS.
  • ✅ DIMENSIONS - This replacement pool filter cartridge has an open 1 15/16 inch (1.9375") top, 1 15/16 inch (1.9375") open hole bottom, 5 7/8 inch (5.875") diameter and 10 1/2 inch (10.5") length. The 30 sq. ft. of premium filter material is easier to clean, filters better and lasts longer.
  • ✅ MULTI PACK SAVINGS - Choose from our value savings single, double or triple 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.
  • ✅ EASY TO CLEAN - Guardian Filtration Products are designed to be long lasting and easy to clean so you can keep your pool and spa crystal clear and safe for you and your family. Our premium blue ProtectionPLUS filter material keeps your water clearer and is easier to clean.
  • ✅ USA MANUFACTURER - Our USA based manufacturing facility has been operating out of Northwest Pennsylvania since 2003. We're committed to creating affordable, high quality pool filtration products and accessories...Click Add-to-Cart or 1-Click Buy to order your pool/spa filter cartridge today!

Volca Spares Type S1 Filter Cartridge for Intex PureSpa Hot Tub Models, 29001E, 12 Pack

$39.99  in stock
3 used from $35.87
Free shipping
Amazon.com
as of December 5, 2021 11:53 pm

Features

  • 12 pack Type S1 cartridge filter, providing clean and clear water for your leisure time
  • Compatible with Intex PureSpa models: 28403E, 28407E, 28443E, 28453E, 28421E, 28423E, 28413E, and 28453E
  • Made with easy to clean dacron material; pool filter cartridge should be replaced every 4 weeks or sooner
  • Dimension of each filter: 4.2 x 3 inch
  • 100% satisfaction products and worry-free customer service from Volca Spares

Guardian Filtration - Pool & Spa Cartridge Filter Replacement for Pleatco PRB25-IN, Unicel C-4326, C4326, and Filbur FC-2375 | Easy to Clean 25 Sq. Ft. Filter Media | Model 413-106 (2 Pack, White)

$35.00  in stock
2 new from $35.00
Free shipping
Amazon.com
as of December 5, 2021 11:53 pm

Features

  • ✅ 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 REEMAY premium spunbond trilobal filter material for better filtration.
  • ✅ MULTI PACK SAVINGS - Choose from our value savings 1 pack, 2 pack or 6 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.
  • ✅ EASY TO CLEAN - Guardian Filtration Products are designed to be long lasting and easy to clean so you can keep your pool and spa crystal clear and safe for you and your family. Our premium spunbond filter fabric and cartridge caps are durable and resistant for pool and hot tub spa use.
  • ✅ USA MANUFACTURER - Our USA based manufacturing facility has been operating out of Northwest Pennsylvania since 2003. We're committed to creating affordable, high quality pool filtration products and accessories...Click Add-to-Cart or 1-Click Buy to order your pool/spa filter cartridge today!

Future Way Hot Tub Filter Compatible with Pleatco PRB25-IN Spa Filter, Unicel C-4326, Filbur FC-2375, Guardian 413-106, Easy to Clean, 25sq. ft, 3-Pack

$45.99  in stock
3 new from $45.99
Free shipping
Amazon.com
as of December 5, 2021 11:53 pm

Features

  • 【Perfect Fit】 Compatible with Pleatco PRB25-IN, PDC25-AFS, Unicel C-4326, Filbur FC-2375, Guardian 413-106, Pentair R173429, 3005845, 17-2327, 100586, 33521, 25392, 817-2500 and more.
  • 【Dimension】 With an outer diameter of 5", inner diameter of 2-1/8" and a height of 13-5/16", definitely compatible with your filter perfectly.
  • 【Long Lasting】 Reusable just by hosing the sediment off, cost efficient.
  • 【Powerful Filtration】 Made of advanced trilobal fabric, effectively collecting large amount of debris or other contaminants, getting the water clean and run smoother.
  • 【Note】 In order to avoid corrosion, we suggest taking the filter out before cleaning with disinfectant.

Guardian Filtration - Hot Tub & Spa Filter Replacement for Pleatco PWK65, Unicel C-8465, Filbur FC-3960 | 65 Sq. Ft. of Premium Filter Cartridge Material | Model 810-235

$37.00  in stock
2 new from $37.00
Free shipping
Amazon.com
as of December 5, 2021 11:53 pm

Features

  • ✅ REPLACEMENT FILTER - Get purer, cleaner water in your pool or spa with these replacement cartridge filters compatible for Pleatco: PFF25P4 Unicel: 4CH-22 Filbur: FC-2399 . See below for alternate filter names.
  • ✅ DIMENSIONS - This replacement pool filter cartridge has the following measurements: Diameter: 4 5/8" Length: 6 5/8" Top: Open Hole: 2 3/16" Bottom: 1 1/2" MPT Threaded
  • ✅ MULTI PACK SAVINGS - Choose from our value savings 1 pack or 2 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.
  • ✅ EASY TO CLEAN - Guardian Filtration Products are designed to be long lasting and easy to clean so you can keep your pool and spa crystal clear and safe for you and your family. Our premium spunbond filter fabric and cartridge caps are durable and resistant for pool and hot tub spa use.
  • ✅ USA MANUFACTURER - Our USA based manufacturing facility has been operating out of Northwest Pennsylvania since 2003. We're committed to creating affordable, high quality pool filtration products and accessories...Click Add-to-Cart or 1-Click Buy to order your pool/spa filter cartridge today!

Intex 6 x 29001E B00PUZW3N2 PureSpa Type S1 Easy Set Pool Cartridges (12 Filters) | 2, Count (Pack of 1), Blue

$38.60  in stock
8 new from $38.99
Free shipping
Amazon.com
as of December 5, 2021 11:53 pm

Features

  • Genuine Intex type S1 filter cartridge - twelve pack The S1 cartridge filter is sure to keep your purespatm jet massage water clean and fresh
  • It is made with easy-to-clean, heavy duty Dacron paper, for the ultimate filtration
  • For maximum efficiency, clean cartridges each week and replace once a month or sooner
  • Each filter Measures 3in x 4 1/4 in
  • Works with all Intex PureSpa models including 28403E, 28407E, 28443E, 28453E, 28421E, 28423E, 28413E, and 28453E

POOLPURE 5CH-352 Spa Filter Replaces PPM35SC-F2M, Marquis Spa 20042, 20092, 70-0240, 370-0242, 370-0243, Filbur FC-0196, 2" Male Thread/MPT Hot Tub Filter, 2 Pack

 out of stock
Amazon.com
as of December 5, 2021 11:53 pm

Features

  • 【NSF/ANSI 50 Certified】 Poolpure Pool and Spa filter is tested and certified by IAPMO against NSF/ANSI 50. Poolpure filter delivers safe and clear purified water to inspire the highest sense of happiness. Enjoy your unique leisure time.
  • 【Compatible Models】 Length: 12 3/16"; Outer Dimension: 5 1/4"; Top: Handle; Bottom: 2" Male Thread/MPT. PLF5CH-352 Spa filter compatible Aladdin 13507, Baleen AK-90103, Magnum MA35, Excel Filters XLS-525, Pure N Clean PC-0196, SD-01119, Cal Spa Avalon 42, 370-0683, 370-0698. NOTE: All trademark remain the property of their respective holder(s) and are used for compatibility information 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.
  • 【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.
  • 【Long Service Life】 Unique Trilobal Filtration Fabric Structure make it easier to capture large volume of contiminants. It is also easy to wash/clean to recondition the filter. We are committed to providing the best quality at good price.
IDEA SYSTEMS IS SUPPORTED BY ITS AUDIENCE. WHEN YOU PURCHASE THROUGH LINKS ON OUR SITE, WE MAY EARN AN AFFILIATE AMAZON COMMISSION.