Best Spa Filter 2026

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Last Updated - 22.07.2026

Best Choice

01

POOLPURE

POOLPURE Spa Filter, Whirlpool Filter Replacement for Unicel 6CH-940, Pleatco PWW50P3, PWW50-P3, Filbur FC-0359, Waterway Plastics 817-0050, 25252, 378902, 03FIL1400 (Pack of 2)

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9.6

Exceptional

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Main highlights

Robust construction: the filters are constructed thanks to their robust construction and shatter-proof materials for maximum durability and function. The sturdy filter fabric with 45 m² surface, the ABS core and the sturdy lids allow a water flow with high pressure and are resistant to chlorine and other substances.
Premium pool and spare filter replacement: The Poolpure pool and spa filter replacement has been specially developed as a replacement filter for filter models from Pleatco Unicel Filbur and Waterway Plastics and comes as a value pack of 2 filters. Our filters are loss-free in water flow and thus offer the highest performance. Enjoy fresh, clean water in your pool and spa at any time that is free from harmful substances.
Powerful filtration: thanks to the innovative "dirt locking" technology, the filter is able to filter far more impurities from the water than conventional filters. Highly efficient hair, leaves, dust, sediment and sand are filtered out of the water. Nothing stands in the way of your bathing pleasure in clear, clean water with our filters.
Long service life thanks to innovative technology: thanks to the special structure of the trilobal filter fabric, not only the filtration is improved, but also cleaning is easier and the wear of the fabric is reduced. Thanks to the higher filter capacity, cleaning cycles are also extended. You have less effort and longer use for clear water in your spa and pool.
Compatibility and dimensions: our filters are compatible with Pleatco PWW50-P3, PWW50P3, Unicel 6CH-940, Filbur FC-0359, Waterway Plastics 817-0050, 25252, 378902, 03FIL1400. The top is equipped with a semi-circular carry handle. Dimensions: total length (including handle and thread section): 24.75 cm, length (filter paper section): 20.5 cm, outer diameter: 15.2 cm, 1 1/2 inch (3.8 cm) SAE thread.

45,99 €
02

JEFFEL

Spa Filter for Whirlpoal Pww50 Filter for Whirlpoal Filter Replacement for Unicel 6CH-940, Filbur FC-0359 for Waterway Plastics 817-0050 (Pack of 2)

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9.5

Excellent

Our rankings are cleverly generated from the algorithmic analysis of thousands of customer reviews about products, brands, merchant’s customer service level, popularity, trends and more. The rankings reflect our opinion and should be a good starting point for shopping.

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Main highlights

️【Long service life】: Unique trilobal filtration fabric structure makes it easy to catch and release stains, so it is easy for you to wash the filter after use. Compatible with most indoor/outdoor, inround, above ground swimming pools, hot tubs and spas. Enjoy clean leisure time in your pool. If you have any questions, please contact us. We will help you solve the problem within 24 hours.
Whirlpool filter high quality: JEFFEL replacement filter pww50 whirlpool filters and spa filter cartridges are made from certified safe materials. The entire filter contains a shatter-resistant handle, a large ABS inner core and a thick filter fabric to form a strong and durable body. The filter can resist high pressure and corrosion of high capacity chlorine. With proper maintenance, this filter can be used for 1-2 years.
Pww50 whirlpool filter: whirlpool filter diameter: 150 mm/5.9 inches; height: 241 mm/9.5 inches; thread: 46.5 mm/1.8 inches with 1-1/5.1 cm SAE thread. Filtration range: 45sq polyester fibres also help capture particles, improve efficiency without pressure drop. frequency of filter cleaning.
Powerful filtration performance: spa filter whirlpoal-innovative "dirt locking" technology ensures that the fabric contains much more impurities than conventional fabric. The filter can reduce hair, leaves, dust, sediment, sand highly efficiently. Enjoy leisure time in your spa and hot tub.
Compatible models: Pack of 2 spa hot tub filters, compatible with Filbur FC-0359 spa filter, PWW50P3, Unicel 6CH-940 and Waterway 817 0050, 03FIL1400, 25252, 378902 and PWW50-P3. Please note the screw thread difference between PWM W50-P3 and PWW50-P4

39,99 €
Value for Money

03

Vokowin

Vokowin Spa Filter VI, Pack of 8 Filter Cartridges VI for Bestway Miami, Monaco Lay-Z-Spa, Vegas, Palm Springs, Flowclear Pool Filter Replaces Original Cartridge 58323

16% Off

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9.4

Excellent

Our rankings are cleverly generated from the algorithmic analysis of thousands of customer reviews about products, brands, merchant’s customer service level, popularity, trends and more. The rankings reflect our opinion and should be a good starting point for shopping.

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Main highlights

Perfect fit: compatible with Bestway, models such as Miami, Vegas, Monaco, Paris, Hawaii, Palm Springs, Helsinki etc. and other folding hot tub systems with VI pool filter.
More Durable The filter cartridge is made of high strength polypropylene flow core, which protects the filter from deformation at high water pressure. At the same time, additional straps help maintain the kink distance and increase the longevity of the filter cartridge.
HIGH FILTRATION PERFORMANCE High quality Dacron fabric collects hair, leaves, dust, sediment, sand, etc., and is easy to clean and replace. The inflatable hot tub filter cartridge is installed in the filter pump and traps dirt as it flows through the system.
HIGH EFFICIENCY FILTRATION Equipped with a high strength filter fabric that maintains its strength even when loaded with sediment, a tighter porosity and a denser bond to catch more pollutants in less time.
Dimensions: outer diameter 107mm, inner diameter 52mm, height 79mm, please confirm the size or model

25,99 € 31,00 €(16% Off off)
04

Dokkita

Dokkita Set of 12 Replacement Filters for MSPA Whirlpool Filter Cartridges, Filters for Hot Submarines and Spa, for Inflatable Pools - Water Filter Model from 2020

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9.3

Excellent

Our rankings are cleverly generated from the algorithmic analysis of thousands of customer reviews about products, brands, merchant’s customer service level, popularity, trends and more. The rankings reflect our opinion and should be a good starting point for shopping.

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Main highlights

Wide compatibility: Dokkita replacement filter compatible with Delight, Premium, Elite, Concept models for Aurora, for Mont Blanc, for Mono, for Alpine, for Camaro, for Nest, for Soho, for Baikal, for Starry, for Bliss, for Silver Cloud; Perfect fit for all MSpa hot tubs from 2020
The replacement filter for MSpa Whirlpool is available in various sets. Choose depending on the model of your inflatable for hot tubs: all variants up to 2019 require the replacement filter for MSpa with integrated screw thread, from 2020 a reusable holder is mandatory. Get the clever pool accessories and continue to enjoy relaxing hours in your outdoor pool
Functions - Effective filtering of dirt in swimming pools and hot tub to keep the water clean
Dokkita Replacement filter for hot tub effectively cleans the water and filters out the dirt. Change your filter when the filter change alarm is displayed on your remote control; we recommend changing the filter every 4-6 weeks
Automatic filtering of water from impurities. The filter is one of the most effective filter systems for hot tubs with 90 slats and at 4,000 square centimetres of area

36,99 €
05

TOREAD

TOREAD Replacement for Spa Filter Unicel 6CH-940, PWW50P3 (Not PWW50P4), Filbur FC-0359, 817-0050, 25252, 03FIL1400, 1 1/2" SAE Thread Screw in Filter, Pack of 2

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9.1

Excellent

Our rankings are cleverly generated from the algorithmic analysis of thousands of customer reviews about products, brands, merchant’s customer service level, popularity, trends and more. The rankings reflect our opinion and should be a good starting point for shopping.

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Main highlights

【6-MONTH RETURN POLICY GUARANTEED!】Product Life Time Warranty on Every Filter Confirmed with Defects in Material, Workmanship, and Any Filter Caused Malfunction within Each Filter's 12-Month Service Life. We promise a risk-free shopping experience backed up with our reliable customer service and technical support team which is located to Los Angeles.
Reinforce structure: with 25% thicker filtration fabric, heavy chlorine resistant and break-resistant end caps and reinforced centre support, the filter delivers high powered propulsion flow, and crystal clear water, providing you with a relaxed and healthy enjoyment.
Recovery models: TRF-6CH-940 compatible with PWW50P3 (not PWW50P4), Unicel 6CH-940, Aladdin 14510, Baleen AK-9019, 78902, SD-00031, SD-00710, PLE-051-919. 3, PLE-0 51-9194 Length: 7 5/8"; Outside Diameter: 6"; Top: Circular Handle; Bottom: 1 1/2" SAE thread (Coarse Thread); Filtration Area: 45 sq. ft. 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.
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.
More efficient filtration area: Uniformity and high-performance trilobal fabric has 21-40% higher capacity compared with common point-bond fabric. The trilobal shape of fabric fibers also helps catch particles, increases efficiency without the pressure drop penalty, and helps reduce filter cleanining frequency.

37,99 €
06

TOREAD

TOREAD Spa Filters for Whirlpool & Hot Tub Replacement Filters - Replaces Pleatco PRB25-IN, Unicel C-4326, FC-2375 - Compatible with Waterway 817-5000, Dynamic RDC-25 - Dimensions: 33.8 x 12.73 cm

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8.9

Very Good

Our rankings are cleverly generated from the algorithmic analysis of thousands of customer reviews about products, brands, merchant’s customer service level, popularity, trends and more. The rankings reflect our opinion and should be a good starting point for shopping.

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Main highlights

【Precise Fit for Hot Tubs】This 2 pack replacement filter offers the perfect size: length 13.3 inches, outer diameter 5 inches, opening 2.12 inches. Ideal as a hot tub filter replacement for an exact fit without pressure loss.
NSF/ANSI 50 certified and safe: the TOREAD whirlpool filter is certified according to NSF/ANSI 50 standard. Made of high quality filter material, this replacement cartridge ensures efficient water purification and healthy bathing pleasure in your outdoor hot tub or spa.
Maximum compatibility: Excellent replacement filter for Pleatco PRB25-IN, Unicel C-4326, Filbur FC-2375 (FC-2370). Compatible with Waterway 817-5000, Dynamic RDC-25, Pentair R173434, SD-00196 and M-4326.
Durable and easy to clean: the robust structure of this filter cartridge allows easy cleaning under running water. Thanks to chlorine-resistant end caps, the filter offers a long service life. We recommend cleaning every 2 weeks for optimal pool filter performance.
Advanced lamella filter fabric: Our innovative trilobal fabric increases dirt absorption by 21-40%. This fin filter effectively traps deposits and oils, provides crystal clear water and supports sustainable water care at a high flow rate.

39,99 €
07

POOLPURE

POOLPURE Filter VI for Pool, Filter Cartridges VI for Lay-Z-Spa Miami, Monaco, Vegas, PoolFilter Replaces Original Cartridge 58323, Pool Filter VI (6PC)

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8.6

Very Good

Our rankings are cleverly generated from the algorithmic analysis of thousands of customer reviews about products, brands, merchant’s customer service level, popularity, trends and more. The rankings reflect our opinion and should be a good starting point for shopping.

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Main highlights

Superior filtration: our filter cartridge VI innovative "dirt locking" technology ensures that the fabric catches more impurities than standard filters. Removes hair, leaves, dust, sediment, sand and more efficiently. Enjoy pristine water during your hot tub spa.
Powerful filtration capacity: Our unique trilobal filter fabric provides an enlarged surface area and optimises the back pressure in your filter system. This ensures consistently clean, fresh and clear water in your pool or spa.
Please note: Before you proceed with the purchase, please check whether the model is compatible to ensure an optimal shopping experience.
Effortless Cleaning: The Trilobal fabric structure of the filter facilitates the release of impurities during cleaning and ensures that the filter feels like new after each wash. For optimal performance, it is recommended to clean the cartridges once a month.
Compatible with swimming pool pumps: suitable Lay-Z-Spa pumps: BW54123 - Miami, BW54112 Vegas, BW54129, Design Palm Springs & BW54113 - Monaco
Compatibility details: dimensions: height 7.9 cm, diameter 10.5 cm, openings: 5.15 cm top and bottom. Designed to fit Type VI 90352E. Compatible with filter lay z spa miami, Monaco Lay-Z-Spa, Vegas, Palm Springs and many other pools and hot tubs. Please note this is a compatible spare part, please refer to the original manufacturer's names and part numbers for compatibility. POOLPURE is an independent brand.

24,99 €
08

TOREAD

TOREAD Spa Filter Replacement for Pleatco PRB50-IN, Unicel C-4950, Filbur FC-2390, Guardian 413-212, Dynamic 03FIL1600, Pentair R173434, 5x13 Hot Tub Filter

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8.5

Good

Our rankings are cleverly generated from the algorithmic analysis of thousands of customer reviews about products, brands, merchant’s customer service level, popularity, trends and more. The rankings reflect our opinion and should be a good starting point for shopping.

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Main highlights

Replacement models: TOREAD TRF-4950 filter compatible Pleatco PRB50-IN, Unicel C-4950, SD-00201, SD-00455, Aladdin 15002, 25391, PLE-051-0088, PLE-051-9180, 15002. ECO, 17-17175-1596, 17-2380, 25391, 3005815, 303652, 3301-2145 Length: 13 5/16"; Outside Diameter: 5"; Top Hole: 2 1/8" Open; Bottom Hole: 2 1/8" Open. 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.
Reinforce structure: with 25% thicker filtration fabric, heavy chlorine resistant and break-resistant end caps and reinforced centre support, the filter delivers high powered propulsion flow, and crystal clear water, providing you with a relaxed and healthy enjoyment.
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.
More efficient filtration area: Uniformity and high-performance trilobal fabric has 21-40% higher capacity compared with common point-bond fabric. The trilobal shape of fabric fibers also helps catch particles, increases efficiency without the pressure drop penalty, and helps reduce filter cleanining frequency.
Easy to clean: 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.

38,99 €
09

AQUALTRA

AQUALTRA Spa Filter Cartridges Compatible with PWW50P3 (39 mm Coarse Thread), 6CH-940, FC-0359, 817-0050, 194 x 150 mm Screw in SAE Thread Filter, Pack of 2

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8.4

Good

Our rankings are cleverly generated from the algorithmic analysis of thousands of customer reviews about products, brands, merchant’s customer service level, popularity, trends and more. The rankings reflect our opinion and should be a good starting point for shopping.

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Main highlights

Washable and reusable: Aqualtra spa filter replacement parts are made of easy-to-clean, durable fabric that is easy to rinse and reuse. For performance optimization, we recommend cleaning the filter every 2 weeks. **IMPORTANT NOTE**: To avoid corrosion, please remove the filter before cleaning!
NSF certified materials: the 6CH-940 spa filter consists of a PET composite filter, a highly chlorine-resistant end cap and a polypropylene core. All materials are BPA free and NSF/ANSI certified to provide you with relaxed and safe leisure moments!
High filtration performance: The innovative "dirt locking" technology ensures that the fabric retains significantly more impurities than regular fabric. 45 square feet of filter area with 21-40% higher capacity than conventional point-bound fabrics. The Aqualtra spa filter effectively reduces hair, leaves, dust, sediment, sand, etc., ensuring a clean, comfortable bathing area.
Compatible models: outer gauge: 6 inch / 150 mm; length: 7 5/8 inch / 194 mm; top: round handle; bottom: 1 1/2 inch / 39 mm SAE thread. The AQUALTRA 6CH940 spa filter is compatible with PWW50P3 (not PWW50P4), FC-0359, SD-00031, SD-01049, 817-0050, 25252, 378902, 03FIL1400, HTF0245RT. *Note: All manufacturer names and part numbers remain the property of their respective owners and are used for compatibility information only. AQUALTRA is an independent brand. *
100% satisfaction guarantee: We value your shopping experience. If you have any problems with the AQUALTRA spa filter cartridge, please contact us - we will solve these within 24 hours. *Note: Please check before purchase whether the filter 6CH-940 fits your hot tub, spa or swimming pool. *

36,99 €
10

YANHUA

YANHUA Spa Filter for Whirlpool Filter, PWW50 Filter Cartridge Replacement for PWW50P3 Spa Filter, for Unicel 6CH-940, for Filbur FC-0359, for Waterway Plastics 817-0050 (2 Pieces)

16% Off

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8.3

Good

Our rankings are cleverly generated from the algorithmic analysis of thousands of customer reviews about products, brands, merchant’s customer service level, popularity, trends and more. The rankings reflect our opinion and should be a good starting point for shopping.

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Main highlights

Product compatibility: Replacement for PWW50-P3, PWW50P3, for Unicel 6CH-940, for Filbur FC 0359, for Waterway Plastics 817-0050, 25252, 378902, 03FIL1400
POWERFUL FILTRATION PERFORMANCE Thanks to the innovative "dirt locking" technology, the fabric contains much more impurities than ordinary fabric. The foldable design of the filter cartridge for PWW50 increases the filter area, the for PWW50 filter can highly efficiently reduce hair, leaves, dust, sediment and sand.
LONG LIFE The unique structure of the trilobal filtration fabric makes it easy to capture and remove stains, low pressure difference, large flow, long service life, allowing you to easily wash the filter after use and reduce costs.
Filter for PWW50: 100% polyester fiber material, better dust collection capacity, the durable polyester makes the cartridge last longer than other choice. The entire for PWW50 filter consists of a shatterproof handle, a high flow ABS inner core and a thick filter fabric to form a strong and durable body.
Filter cartridge for PWW50 filter: hole size 150 mm/5.9 inches; length 241 mm/9.5 inches; coarse thread 46.5 mm/1.8 inches. Measure your PWW50 filter and match it with the dimensions of this filter before ordering.

39,99 € 47,48 €(16% Off off)