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No matter the model of your spa or hot tub, or when it was made - it's important that you regularly change your filter to prevent build-up. Spa filters regulate the water that enters your spa and keep debris, dirt, and other items from floating into the pipes and damaging the pump and inner workings of your hot tub.

The filter material contains 45 square ft. Multi pack savings - choose from our value savings single, double or 4 pack filter bundle. Of premium spunbond trilobal filter material for better filtration.
Replacement filter - compatible replacement cartridge filter for: pleatco pff50p4 unicel: 5ch-45 filbur: FC-2401 Freeflo, PFF50 with Pad, PFF50-PAD4, Freeflow, AquaTerra Spas. 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. Alternate replacement filter compatibility: 090164055428, and PFF50P.

Our premium filter material keeps your water clearer and is easier to clean. Guardian filtration products has been operating out of northwest Pennsylvania since 2003.
Dimensions - this open top filter has a 2 1/8 inch 2. 125" top hole with 1 1/2 1. 5" inch, a 5 5/16 inch 5. 3125" diameter and 10 inch 10" length. 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.

Premium pleated fabric and reinforced end caps resistant to chemicals in pool and spa, prolonging the life of the cartridge structure. Note: the use of the above trademarks herein is for informational purposes only. Buy with confidence: every spa filter is backed by six-months return policy warranty! We also provide Life Time Warranty for filter which confirmed with defects in material within it's 12-Month service life.
Premium filtering performance: advanced dirt-capture technology allows capture more particles, hair, sand and other contaminants per gallon of water pumped than regular fabric, dust, sediment, leaves, which reduce wear and tear on pump and keep clean & healthy water quality in your spa and hot tub all the time. Our replacement filter can be used repeatedly and lasts 1-2 years with proper maintenance. Compatible models: excelfu spa filter compatible with watkins 303279, pff42tc-p4, sd-01322, 78460, aquaterra and free flow hot tub.

Enjoy clean leisure time in your pool. Poolpure is an independent brand. Poolpure filter delivers safe and clear purified water to inspire the highest sense of happiness. Long service life unique trilobal filtration fabric Structure make it easier to capture large volume of contiminants.
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. Plf4ch-23 pool filter compatible unicel 4ch-23, aladdin 12536, filbur fc-2400, Baleen AK-90032, 17-175-1961. Powerful filtration performance innovated "dirt-locking" technology make the fabric traps much more contaminants than regular fabric.

Sizelength: 9 1/2"not 6 inch; outside diameter: 5 3/8"; top: Closed with String Handle; Bottom: 1 1/2" MPT Thread.
Qualified materialthe advanced material of trilbal fibers is utilized. It makes water filtration more thoroughly and service life longer. Compatible models compatible with watkins 303279, pff42TC-P4, filbur fc-2402, 78460, Free Flow and Lifesmart Hot Tub Filter.

Plffc-2402 spa filter compatible watkins 303279, filbur fc-2402, pff42TC-P4, ACT-50SQFLTR, 78460, LSX1057. Poolpure filter delivers safe and clear purified water to inspire the highest sense of happiness.
It is also easy to wash/clean to recondition the filter. Note: all trademark remain the property of their respective holders and are used for compatibility information only. Long service life unique trilobal filtration fabric structure make it easier to capture large volume of contiminants. Enjoy clean leisure time in your spa and hot tub. Nsf/ansi 50 certified poolpure pool and spa filter is tested and certified by IAPMO against NSF/ANSI 50 We are committed to providing the best quality at good price.


Compatible with hot springs spas by Smart Spa Supply - this filter is a must-have for anyone who wants to keep their spa in perfect condition.

Compatible modelscompatible with watkins 303279, pff42tc-P4, 78460, filbur fc-2402, Free Flow and Lifesmart Hot Tub Filter.
It makes water filtration more thoroughly and service life longer. Sizelength: 9 1/2"not 6 inch ; outside diameter: 5 3/8"; top: Closed with String Handle; Bottom: 1 1/2" MPT Thread. Easy cleaningthe improved trilobal fabric filter structure enables the deep penetration of impurities into filter pleats when we wash it, the filter is a totally brand-new one after cleaning.
1. Smart Spa Supply
#ad
White and Blue, Smart Spa Supply HSAK-4031-2 2 Pack-Hot Springs Freeflow Spa Replacement Filter-303279
#adSmart Spa Supply #ad - Choose from our selection of hot tub filters to find the right replacement hot tub filter for your spa - at the right price! Hot spring spa filters are a vital part of any spa system. 5 1/4" outside diameter x 9 3/8" long with closed top with string handle & 1 1/2" MPT standard threads.No matter the model of your spa or hot tub, or when it was made - it's important that you regularly change your filter to prevent build-up. Spa filters regulate the water that enters your spa and keep debris, dirt, and other items from floating into the pipes and damaging the pump and inner workings of your hot tub.
More information #ad
2 pack - part number: 303279. This filter is designed to fit the following spas: free flow emerald 2012, free flow accent 2006-2014, free flow legend 2005-2008, free flow crossfire 2006-2008, free flow excursion 2007-2015, free flow cascina 2013-2015, free flow Tri star 2009-2015, free flow monterey 2012-2015, free flow azure 2009-2015, free flow tlx 2005-2008, free flow mini 2015, free flow rlx 2005-2008, free flow clx 2005-2008, free flow passport 2005-2011, free flow solstice 2006-2014, free flow slx 2007-2008.Brand | Smart Spa Supply #ad |
Manufacturer | Smart Spa Supply #ad |
Height | 10 Inches |
Length | 5.25 Inches |
Weight | 1.36 Pounds |
Width | 10.5 Inches |
Part Number | HSAK-4031-2 |
Model | HSAK-4031-2 |
More information #ad
2. Guardian Filtration Products
#ad
Guardian Pool Spa Filter Replaces Pff50P4 Unicel: 5CH-45 Filbur: FC-2401 Freeflo,Freeflow, AquaTerra Spas
#adGuardian Filtration Products #ad - Our premium filter material keeps your water clearer and is easier to clean. 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! Guardian filtration products has been operating out of northwest Pennsylvania since 2003.The filter material contains 45 square ft. Multi pack savings - choose from our value savings single, double or 4 pack filter bundle. Of premium spunbond trilobal filter material for better filtration.
More information #ad
Dimensions - this open top filter has a 2 1/8 inch 2. 125" top hole with 1 1/2 1. 5" inch, a 5 5/16 inch 5. 3125" diameter and 10 inch 10" length. 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. Replacement filter - compatible replacement cartridge filter for: pleatco pff50p4 unicel: 5ch-45 filbur: FC-2401 Freeflo, PFF50 with Pad, PFF50-PAD4, Freeflow, AquaTerra Spas. 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. Alternate replacement filter compatibility: 090164055428, and PFF50P.
Brand | Guardian Filtration Products #ad |
Manufacturer | Guardian Filtration Products #ad |
Height | 4.33 Inches |
Length | 2.05 Inches |
Weight | 1.4 Pounds |
Width | 2.09 Inches |
Part Number | 5H9-180 |
Model | 5H9-180 |
More information #ad
3. Guardian Filtration Products
#ad
Freeflow, Guardian Filtration, 2 Pack Pool Spa Filter Replaces Pleatco: PFF50P4 Unicel: 5CH-45 Filbur: FC-2401 Freeflo, AquaTerra Spas | Value Savings Double Filter Pack
#adGuardian Filtration Products #ad - Of premium spunbond trilobal filter material for better filtration. Alternate replacement filter compatibility: 090164055428, PFF50 with Pad, Freeflow, PFF50-PAD4, and PFF50P. 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 filter material keeps your water clearer and is easier to clean. Guardian filtration products has been operating out of northwest Pennsylvania since 2003.
More information #ad
Replacement filter - compatible replacement cartridge filter for: pleatco pff50p4 unicel: 5ch-45 filbur: FC-2401 Freeflo, AquaTerra Spas. 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! Multi pack savings - choose from our value savings single, double or 4 pack filter bundle. Dimensions - this open top filter has a 2 1/8 inch 2. 125" top hole with 1 1/2 1. 5" inch, a 5 5/16 inch 5. 3125" diameter and 10 inch 10" length. 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.
Brand | Guardian Filtration Products #ad |
Manufacturer | Guardian Filtration Products #ad |
Part Number | 5H9-200-02_FBA |
Model | 5H9-200-02_FBA |
More information #ad
4. EXCELFU
#ad
EXCELFU 2 Pack Spa Filter Hot Tub Filter Replacement for Watkins 303279, Lifesmart, FC-2402, AquaTerra, 78460, Freeflow Spas, SD-01322, PFF42TC-P4, 1 1/2" MPT Thread Fine Thread
#adEXCELFU #ad - If you have any question about the product, just contact with us and our professional Customer Service and Technical Support will help you. Reusable & easy to clean: the advanced trilobal fabric increase water flow rate which make it much easier to clean the impurities of filter pleats and give the hot tub filter new life and superior filtration again.Premium pleated fabric and reinforced end caps resistant to chemicals in pool and spa, prolonging the life of the cartridge structure. Note: the use of the above trademarks herein is for informational purposes only. Buy with confidence: every spa filter is backed by six-months return policy warranty! We also provide Life Time Warranty for filter which confirmed with defects in material within it's 12-Month service life.
More information #ad
Reliable pool filter: our spa filter is made of lead-free and BPA free material, provide your family a health and safe spa time. Length:9 3/8", lsx1057, outside diameter:5 1/4", act-50sqfltr, lifesmart, filbur FC-2402, Top:closed with string handle, Bottom:1 1/2" MPT threaded. Premium filtering performance: advanced dirt-capture technology allows capture more particles, hair, sand and other contaminants per gallon of water pumped than regular fabric, dust, sediment, leaves, which reduce wear and tear on pump and keep clean & healthy water quality in your spa and hot tub all the time. Our replacement filter can be used repeatedly and lasts 1-2 years with proper maintenance. Compatible models: excelfu spa filter compatible with watkins 303279, pff42tc-p4, sd-01322, 78460, aquaterra and free flow hot tub.
Brand | EXCELFU #ad |
Manufacturer | YUNDA H&H TECH (TIANJIN) CO., LTD. #ad |
More information #ad
5. POOLPURE
#ad
AK-90032 Hot Tub Filter 1PACK, Lifesmart 303263, Aladdin 12536, SD-00206, Filbur FC-2400, Freeflow Lagas FF-100 CLX Claro, Excel Filters XLS-442, 78459, POOLPURE 4CH-23 Spa Filter Replaces PFF25TC-P4
#adPOOLPURE #ad - Nsf/ansi 50 certified poolpure pool and spa filter is tested and certified by IAPMO against NSF/ANSI 50 This filter efficiently removes hair, leaves, sediment, sand, dust, etc. Note: all trademark remain the property of their respective holders and are used for compatibility information only.Enjoy clean leisure time in your pool. Poolpure is an independent brand. Poolpure filter delivers safe and clear purified water to inspire the highest sense of happiness. Long service life unique trilobal filtration fabric Structure make it easier to capture large volume of contiminants.
More information #ad
We are committed to providing the best quality at good price. It is also easy to wash/clean to recondition the filter. Enjoy your unique leisure time. Compatible modelslength: 6 5/8", outer dimension: 4 15/16"; top: closed; bottom: 1 1/2" mpt. 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. Plf4ch-23 pool filter compatible unicel 4ch-23, aladdin 12536, filbur fc-2400, Baleen AK-90032, 17-175-1961. Powerful filtration performance innovated "dirt-locking" technology make the fabric traps much more contaminants than regular fabric.
Brand | POOLPURE #ad |
Manufacturer | poolpure #ad |
Model | PLF4CH-23 |
More information #ad
6. Cryspool
#ad
Free Flow and Lifesmart Hot Tub Filter, Cryspool Spa Filter Compatible with Watkins 303279, 1 Pack, FC-2402, 1 1/2" Finer Thread
#adCryspool #ad - Cutting-edge technologies make the capacity higher than common point-bond fabric. And we are equipped with professional service to provide technical support for every customer. Easy cleaningthe improved trilobal fabric filter structure enables the deep penetration of impurities into filter pleats when we wash it, the filter is a totally brand-new one after cleaning.Sizelength: 9 1/2"not 6 inch; outside diameter: 5 3/8"; top: Closed with String Handle; Bottom: 1 1/2" MPT Thread.
More information #ad
It’s recommended that you clean cartridges every 2 weeks to take full advantage of its performance. Quality guaranteesix-months return policy guaranteed if the products are with any quality shortages! We attach great importance to all customer's perfect experience of our products. Qualified materialthe advanced material of trilbal fibers is utilized. It makes water filtration more thoroughly and service life longer. Compatible models compatible with watkins 303279, pff42TC-P4, filbur fc-2402, 78460, Free Flow and Lifesmart Hot Tub Filter.
Brand | Cryspool #ad |
Manufacturer | Cryspool #ad |
More information #ad
7. POOLPURE
#ad
1 1/2" MPT Thread Fine Thread, POOLPURE FC-2402 Spa Filter Replaces Watkins 303279, 2 Pack, 78460, Free Flow and Lifesmart Hot Tub Filter, SD-01322, PFF42TC-P4
#adPOOLPURE #ad - Compatible models length: 9 3/8"; outside diameter: 5 1/4"; top: closed with string handle; bottom: 1 1/2" mpt threaded. This filter lasts for 1-2 years when proper maintenance is performed. 100% money-back guaranteesix-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.Plffc-2402 spa filter compatible watkins 303279, filbur fc-2402, pff42TC-P4, ACT-50SQFLTR, 78460, LSX1057. Poolpure filter delivers safe and clear purified water to inspire the highest sense of happiness.
More information #ad
Powerful filtration performance innovated "dirt-locking" technology make the fabric traps much more contaminants than regular fabric. This filter efficiently removes hair, leaves, sand, dust, sediment, etc. It is also easy to wash/clean to recondition the filter. Note: all trademark remain the property of their respective holders and are used for compatibility information only. Long service life unique trilobal filtration fabric structure make it easier to capture large volume of contiminants. Enjoy clean leisure time in your spa and hot tub. Nsf/ansi 50 certified poolpure pool and spa filter is tested and certified by IAPMO against NSF/ANSI 50 We are committed to providing the best quality at good price.
Brand | POOLPURE #ad |
Manufacturer | Poolpure #ad |
Part Number | PLFFC-2402 |
More information #ad
8. Clarathon
#ad
Simplicity, Clarathon 2 Replacement Filters for Lifesmart, Bermuda Spas, 50SF 2-Pack, Grandmaster, AquaTerra, Hydromaster, Freeflow
#adClarathon #ad - Top: closed with string pull - Bottom: Threaded. Length from end cap to end cap excluding threaded fitting: 9-5/8". Guaranteed to equal or outperform OEM filters that came with your spa.More information #ad
Diameter: 5-3/8" - 50 square foot filtration media. Fits lifesmart grandmaster, Hydromaster, Jewel, Simplicity Spas. Pack of 2.Brand | Clarathon #ad |
Manufacturer | Clarathon #ad |
Part Number | ACT-50SQF |
Model | ACT-50SQF |
More information #ad
9. Smart Spa Supply
#ad
White, Smart Spa Supply 42 Sq Foot Hot Springs Freeflow Spa Replacement Filter-303279
#adSmart Spa Supply #ad - Dimensions - 5. 25 x 5. 25 x 9. 5 inches WxDxH. Please check compatibility before purchase. Easy to remove cord - the cord is easy to remove and transport, so you can quickly replace the filter cartridge when needed.Compatible with hot springs spas by Smart Spa Supply - this filter is a must-have for anyone who wants to keep their spa in perfect condition.
More information #ad
Compatible with most spa models - This filter cartridge is designed to work with most Hot Springs Spa models. Replacement filter cartridge - keep your spa looking and running like new with this replacement filter cartridge. Removes even tiny particles of debris that can damage spa and hot tub pumps, so you can relax and enjoy your soak worry-free.Brand | Smart Spa Supply #ad |
Manufacturer | Smart Spa Supply #ad |
Height | 9.5 Inches |
Length | 5.25 Inches |
Width | 5.25 Inches |
Part Number | 303279 |
Model | 303279 |
More information #ad
10. Cryspool
#ad
2 Pack, 1 1/2" Finer Thread, Free Flow and Lifesmart Hot Tub Filter, Cryspool MPT-Thread Spa Filter Replaces Watkins 303279not 303263, FC-2402
#adCryspool #ad - Cutting-edge technologies make the capacity higher than common point-bond fabric. It’s recommended that you clean cartridges every 2 weeks to take full advantage of its performance. Quality guaranteesix-months return policy guaranteed if the products are with any quality shortages! We attach great importance to all customer's perfect experience of our products.Compatible modelscompatible with watkins 303279, pff42tc-P4, 78460, filbur fc-2402, Free Flow and Lifesmart Hot Tub Filter.
More information #ad
Qualified materialthe advanced material of trilbal fibers is utilized. And we are equipped with professional service to provide technical support for every customer. It makes water filtration more thoroughly and service life longer. Sizelength: 9 1/2"not 6 inch ; outside diameter: 5 3/8"; top: Closed with String Handle; Bottom: 1 1/2" MPT Thread. Easy cleaningthe improved trilobal fabric filter structure enables the deep penetration of impurities into filter pleats when we wash it, the filter is a totally brand-new one after cleaning.
Brand | Cryspool #ad |
Manufacturer | Cryspool #ad |
More information #ad