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    Best Seller
    Replacement Unicel 25 sq. ft. Seasonmaster Model 111 Before 1994 Filter Cartridge PLW25

    Replacement Unicel 25 sq. ft. Seasonmaster Model 111 Before 1994 Filter Cartridge PLW25

    Maintain sparkling clean and beautifully clear water with the replacement Unicel Filter. Made with spunbonded 100% polyester material this Unicel Filter is durable and effective in capturing the smallest of debris. With replacement cartridges available... more

    $29.99

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    Unicel C-8399 Replacement Cartridge Filter 100 Sq Ft Caldera Spas PCD100W FC3965

    Unicel C-8399 Replacement Cartridge Filter 100 Sq Ft Caldera Spas PCD100W FC3965

    The **Unicel** Swimming Pool Filter is made from heavy duty polyester and is designed to last far longer than cheaper alternatives while having more pleats to improve filtering capacity. *Unicel* filters are made in the USA for the highest possible... more

    $132.99 $67.99

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    Best Seller
    Unicel C-8399 Media Replacement Hot Tub Spa Filter Cartridge (2 Pack)

    Unicel C-8399 Media Replacement Hot Tub Spa Filter Cartridge (2 Pack)

    Featuring 100 square feet of 3-ounce basis weight media made of 100-percent polyester Reemay material this 2 pack of C-8399 Cartridge Filters for Hot Tubs ensures high performance and dependable filtration over time. The uniform pleats and Reemay media... more

    $229.99 $126.99

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    Unicel UHD-SR135 Replacement Pool and Spa Filter Cartridge for Sta-Rite T-135TX

    Unicel UHD-SR135 Replacement Pool and Spa Filter Cartridge for Sta-Rite T-135TX

    A happy pool is a clean pool. Remove dirt and debris from your water by keeping your cartridge filter working its best with the Unicel UHD-SR138 Hot Tub Spa Filter Cartridge Replacement. This replacement spa filter cartridge measures 8.68 inches in... more

    $209.99 $124.99

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    2) New Unicel 4CH-949 Pool Spa Waterway Replacement Filter Cartridges 50 Sq Ft

    2) New Unicel 4CH-949 Pool Spa Waterway Replacement Filter Cartridges 50 Sq Ft

    The **Unicel** Swimming Pool Filter is made from heavy duty polyester and is designed to last far longer than cheaper alternatives while having more pleats to improve filtering capacity. *Unicel* filters are made in the USA for the highest possible... more

    $121.91

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    Unicel C-8414 150 Sq. Ft. Swimming Pool and Spa Replacement Filter Cartridge

    Unicel C-8414 150 Sq. Ft. Swimming Pool and Spa Replacement Filter Cartridge

    Your home pool is supposed to swaddle you in total relaxation. However it’s hard to get into zen-mode when the filter doesn’t keep your personal paradise crystal-clear. That’s why it’s important to swap out your filter’s cartridge when it... more

    $128.29 $100.59

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    Unicel 4CH-935 Replacement 35 SqFt Spa Filter Cartridge 219 Pleats (6 Pack)

    Unicel 4CH-935 Replacement 35 SqFt Spa Filter Cartridge 219 Pleats (6 Pack)

    Featuring 35 square feet of 3-ounce basis weight media made of 100-percent polyester Reemay material this 6-pack of Unicel 4CH-935 Cartridge Filters for Hot Tubs ensures high performance and dependable filtration over time. The uniform pleats and... more

    $175.68 $155.99

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    Unicel 5CH-203 Swimming Pool 20 Sq. Ft. LA Spas Replacement Filter Cartridge

    Unicel 5CH-203 Swimming Pool 20 Sq. Ft. LA Spas Replacement Filter Cartridge

    Unicel cartridge filters have been recognized as some of the best pool filter cartridge replacements in the industry. They have been recognized year after year for their quality and performance with their products. This 5CH 203 is a 20 square foot... more

    $33.12

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    Unicel C-7660 Pool Spa Replacement Cartridge Filter 60 GPM Pac-Fab (6 Pack)

    Unicel C-7660 Pool Spa Replacement Cartridge Filter 60 GPM Pac-Fab (6 Pack)

    The **Unicel** Swimming Pool Filter is made from heavy duty polyester and is designed to last far longer than cheaper alternatives while having more pleats to improve filtering capacity. *Unicel* filters are made in the USA for the highest possible... more

    $308.99

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    Unicel C-7494 Replacement 131 SqFt Pool Filter Cartridge (2 Pack)

    Unicel C-7494 Replacement 131 SqFt Pool Filter Cartridge (2 Pack)

    Shake off the summer heat in a cool pool. Make a splash in the cleanest swimming pool in the neighborhood with this 2-pack of Unicel C-7494 Replacement Filter Cartridges. Featuring 131 square feet of 4-ounce basis weight media made of 100-percent... more

    $279.99 $156.92

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    Unicel C-8425 Replacement 200 SqFt Pool Filter Cartridge 250 Pleats

    Unicel C-8425 Replacement 200 SqFt Pool Filter Cartridge 250 Pleats

    Shake off the summer heat in a cool pool. Make a splash in the cleanest swimming pool in the neighborhood with Unicel C-8425 Replacement Filter Cartridge. Featuring 200 square feet of 4-ounce basis weight media made of 100-percent polyester Reemay... more

    $219.99 $154.99

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    2) New Unicel 4CH-949 Pool Spa Waterway Replacement Filter Cartridges 50 Sq Ft

    2) New Unicel 4CH-949 Pool Spa Waterway Replacement Filter Cartridges 50 Sq Ft

    The **Unicel** Swimming Pool Filter is made from heavy duty polyester and is designed to last far longer than cheaper alternatives while having more pleats to improve filtering capacity. *Unicel* filters are made in the USA for the highest possible... more

    $130.23

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    Unicel C-9405 Replacement 50 SqFt Pool Hot Tub Filter Cartridge 217 Pleats

    Unicel C-9405 Replacement 50 SqFt Pool Hot Tub Filter Cartridge 217 Pleats

    Shake off the summer heat in a cool pool. Make a splash in the cleanest swimming pool in the neighborhood with Unicel C-9405 Replacement Filter Cartridge. Featuring 50 square feet of 4-ounce basis weight media made of 100-percent polyester Reemay... more

    $72.89 $64.99

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    Unicel C-4335 Replacement 35 SqFt Pool Hot Tub Filter Cartridge 219 Pleats

    Unicel C-4335 Replacement 35 SqFt Pool Hot Tub Filter Cartridge 219 Pleats

    Shake off the summer heat in a cool pool. Make a splash in the cleanest swimming pool in the neighborhood with the Unicel C-4335 Replacement Filter Cartridge. Featuring 35 square feet of 3-ounce basis weight media made of 100-percent polyester Reemay... more

    $52.99 $32.99

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    Unicel C-4607 Replacement Above Ground Pool Filter Cartridge 51 Pleats

    Unicel C-4607 Replacement Above Ground Pool Filter Cartridge 51 Pleats

    Shake off the summer heat in a cool pool. Make a splash in the cleanest swimming pool in the neighborhood with Unicel C-4607 Replacement Filter Cartridge. Featuring 4-ounce basis weight media made of 100-percent polyester Reemay material this pool... more

    $15.99

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    Unicel C-7499 Replacement 100 SqFt Pool Filter Cartridge (4 Pack)

    Unicel C-7499 Replacement 100 SqFt Pool Filter Cartridge (4 Pack)

    Shake off the summer heat in a cool pool. Make a splash in the cleanest swimming pool in the neighborhood with this 4-pack of Unicel C-7499 Replacement Filter Cartridges. Featuring 100 square feet of 4-ounce basis weight media made of 100-percent... more

    $314.99

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    Unicel 65 sq. ft. Aquatemp Replacement Filter Cartridge C-7619

    Unicel 65 sq. ft. Aquatemp Replacement Filter Cartridge C-7619

    Maintain sparkling clean and beautifully clear water with the Unicel Replacement Filter. Made with spunbonded 100% polyester material this Unicel Filter is durable and effective in capturing the smallest of debris. With replacement cartridges available... more

    $69.99

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    Unicel C-9415 Replacement 150 SqFt Pool Filter Cartridge 175 Pleats

    Unicel C-9415 Replacement 150 SqFt Pool Filter Cartridge 175 Pleats

    Shake off the summer heat in a cool pool. Make a splash in the cleanest swimming pool in the neighborhood with Unicel C-9415 Replacement Filter Cartridge. Featuring 150 square feet of 4-ounce basis weight media made of 100-percent polyester Reemay... more

    $123.99 $110.69

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    Unicel 5CH-352 Replacement 35 SqFt Filter Cartridge for Hot Tub 151 Pleats

    Unicel 5CH-352 Replacement 35 SqFt Filter Cartridge for Hot Tub 151 Pleats

    Featuring 35 square feet of 3-ounce basis weight media made of 100-percent polyester Reemay material this Unicel 5CH-352 Cartridge Filter for Hot Tubs ensures high performance and dependable filtration over time. The uniform pleats and Reemay media... more

    $37.69

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    Unicel 5CH-352 Replacement 35 SqFt Spa Filter Cartridge 151 Pleats (6 Pack)

    Unicel 5CH-352 Replacement 35 SqFt Spa Filter Cartridge 151 Pleats (6 Pack)

    Featuring 35 square feet of 3-ounce basis weight media made of 100-percent polyester Reemay material this 6-pack of Unicel 5CH-352 Cartridge Filters for Hot Tubs ensures high performance and dependable filtration over time. The uniform pleats and... more

    $179.99 $168.99

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    Unicel 5CH-502 Replacement 50 SqFt Spa Filter Cartridge 197 Pleats (4 Pack)

    Unicel 5CH-502 Replacement 50 SqFt Spa Filter Cartridge 197 Pleats (4 Pack)

    Featuring 50 square feet of 3-ounce basis weight media made of 100-percent polyester Reemay material this 4-pack of Unicel 5CH-502 Cartridge Filters for Hot Tubs ensures high performance and dependable filtration over time. The uniform pleats and... more

    $150.99 $133.39

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    Replacement Unicel 8-1/2 sq. ft. Rainbow-Chloro Filter Cartridge C2303

    Replacement Unicel 8-1/2 sq. ft. Rainbow-Chloro Filter Cartridge C2303

    Maintain sparkling clean and beautifully clear water with the replacement Unicel Filter. Made with spunbonded 100% polyester material this Unicel Filter is durable and effective in capturing the smallest of debris. With replacement cartridges available... more

    $26.61

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    Unicel C-7660 Replacement Swimming Pool Filter Cartridge 146 Pleats

    Unicel C-7660 Replacement Swimming Pool Filter Cartridge 146 Pleats

    Shake off the summer heat in a cool pool. Make a splash in the cleanest swimming pool in the neighborhood with Unicel C-7660 Replacement Filter Cartridge. Featuring 4-ounce basis weight media made of 100-percent polyester Reemay material this pool... more

    $54.99

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    Unicel C-7350 Replacement 50 Sq Ft Spa Filter Cartridge (2 Pack)

    Unicel C-7350 Replacement 50 Sq Ft Spa Filter Cartridge (2 Pack)

    Featuring 50 square feet of 3-ounce basis weight media made of 100-percent polyester Reemay material this pack of 2 C-7350 Cartridge Filters for Hot Tubs ensures high performance and dependable filtration over time. The uniform pleats and Reemay media... more

    $98.99 $84.99

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    New Unicel C-4625 Rainbow Pentair In-Line Replacement Spa Filter Cartridge C4625

    New Unicel C-4625 Rainbow Pentair In-Line Replacement Spa Filter Cartridge C4625

    Unicel replacement filter grids are recognized as the best grid replacements in the industry. They have received numerous awards year after year for their performance and quality of products. We are an Authorized Unicel Dealer. An appropriate cleaning... more

    $39.99

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    Unicel C-7350 Replacement 50 Sq Ft Hot Tub Spa Filter Cartridge 200 Pleats

    Unicel C-7350 Replacement 50 Sq Ft Hot Tub Spa Filter Cartridge 200 Pleats

    Featuring 50 square feet of 3-ounce basis weight media made of 100-percent polyester Reemay material this C-7350 Cartridge Filter for Hot Tubs ensures high performance and dependable filtration over time. The uniform pleats and Reemay media deliver... more

    $56.89 $47.79

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    Unicel C-7626 Replacement 25 SqFt Pool Hot Tub Filter Cartridge 111 Pleats

    Unicel C-7626 Replacement 25 SqFt Pool Hot Tub Filter Cartridge 111 Pleats

    Shake off the summer heat in a cool pool. Make a splash in the cleanest swimming pool in the neighborhood with Unicel C-7626 Replacement Filter Cartridge. Featuring 25 square feet of 4-ounce basis weight media made of 100-percent polyester Reemay... more

    $49.74 $36.99

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    Unicel C-8420 Spa Pool Replacement Cartridge Filters Hayward (2 Pack)

    Unicel C-8420 Spa Pool Replacement Cartridge Filters Hayward (2 Pack)

    Shake off the summer heat in a cool pool. Make a splash in the cleanest swimming pool in the neighborhood with the 2 pack of Unicel C-8420 Replacement Filter Cartridges. Featuring 200 square feet of 4-ounce basis weight media made of 100-percent... more

    $429.99 $253.99

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    2 Unicel C-7697 Spa Pool Replacement Cartridge Filter Harmsco SC/TC 155 FC-6115

    2 Unicel C-7697 Spa Pool Replacement Cartridge Filter Harmsco SC/TC 155 FC-6115

    The Unicel Swimming Pool Filter is made from heavy duty polyester and is designed to last far longer than cheaper alternatives while having more pleats to improve filtering capacity. Unicel filters are made in the USA for the highest possible quality... more

    $429.99 $216.38

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    Unicel C-8413 Replacement 125 SqFt Pool Filter Cartridge 148 Pleats

    Unicel C-8413 Replacement 125 SqFt Pool Filter Cartridge 148 Pleats

    Shake off the summer heat in a cool pool. Make a splash in the cleanest swimming pool in the neighborhood with Unicel C-8413 Replacement Filter Cartridge. Featuring 125 square feet of 4-ounce basis weight media made of 100-percent polyester Reemay... more

    $139.99 $94.39

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    Unicel 4CH-935 Replacement 35 SqFt Spa Filter Cartridge 219 Pleats (4 Pack)

    Unicel 4CH-935 Replacement 35 SqFt Spa Filter Cartridge 219 Pleats (4 Pack)

    Featuring 35 square feet of 3-ounce basis weight media made of 100-percent polyester Reemay material this 4-pack of Unicel 4CH-935 Cartridge Filters for Hot Tubs ensures high performance and dependable filtration over time. The uniform pleats and... more

    $121.03 $109.89

    FREE shipping

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    Unicel C-9415 Swimming Pool Filter Replacement Cartridge (2 Pack)

    Unicel C-9415 Swimming Pool Filter Replacement Cartridge (2 Pack)

    Shake off the summer heat in a cool pool. Make a splash in the cleanest swimming pool in the neighborhood with the 2 pack of Unicel C-9415 Replacement Filter Cartridges. Featuring 150 square feet of 4-ounce basis weight media made of 100-percent... more

    $359.99 $221.29

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    Replacement Unicel 25 sq. ft. Top Load Filter Cartridge 6CH25

    Replacement Unicel 25 sq. ft. Top Load Filter Cartridge 6CH25

    Maintain sparkling clean and beautifully clear water with the replacement Unicel Filter. Made with spunbonded 100% polyester material this Unicel Filter is durable and effective in capturing the smallest of debris. With replacement cartridges available... more

    $36.99

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    Replacement Unicel 50 sq. ft. Top Load - Coleman Spas Vita Spas Filter Cartridge 7CH50

    Replacement Unicel 50 sq. ft. Top Load - Coleman Spas Vita Spas Filter Cartridge 7CH50

    Maintain sparkling clean and beautifully clear water with the replacement Unicel Filter. Made with spunbonded 100% polyester material this Unicel Filter is durable and effective in capturing the smallest of debris. With replacement cartridges available... more

    $69.99

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    Unicel C-7470 Replacement 80 SqFt Swimming Pool Filter Cartridge (2 Pack)

    Unicel C-7470 Replacement 80 SqFt Swimming Pool Filter Cartridge (2 Pack)

    Shake off the summer heat in a cool pool. Make a splash in the cleanest swimming pool in the neighborhood with this 2-pack of Unicel C-7470 Replacement Filter Cartridges. Featuring 80 square feet of 4-ounce basis weight media made of 100-percent... more

    $139.99 $122.99

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    2) Unicel C-7626 Spa Pool Replacement Cartridge Filters Sq Ft Hayward CX250RE

    2) Unicel C-7626 Spa Pool Replacement Cartridge Filters Sq Ft Hayward CX250RE

    25 sq. Ft. Hayward cx250re. Replacement for: Hayward pool products cx250re; hollibaugh spas; pdc spas; Sonoma spas more

    $103.28

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    Unicel C-9407 Replacement 75 SqFt Pool Hot Tub Filter Cartridge 171 Pleats

    Unicel C-9407 Replacement 75 SqFt Pool Hot Tub Filter Cartridge 171 Pleats

    Shake off the summer heat in a cool pool. Make a splash in the cleanest swimming pool in the neighborhood with Unicel C-9407 Replacement Filter Cartridge. Featuring 75 square feet of 4-ounce basis weight media made of 100-percent polyester Reemay... more

    $132.99 $71.99

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    Unicel C-7470 Replacement 80 SqFt Swimming Pool Filter Cartridge 170 Pleats

    Unicel C-7470 Replacement 80 SqFt Swimming Pool Filter Cartridge 170 Pleats

    Shake off the summer heat in a cool pool. Make a splash in the cleanest swimming pool in the neighborhood with Unicel C-7470 Replacement Filter Cartridge. Featuring 80 square feet of 4-ounce basis weight media made of 100-percent polyester Reemay... more

    $91.28 $64.99

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    Unicel C-7488 Replacement 106 SqFt Pool Filter Cartridge 176 Pleats

    Unicel C-7488 Replacement 106 SqFt Pool Filter Cartridge 176 Pleats

    Shake off the summer heat in a cool pool. Make a splash in the cleanest swimming pool in the neighborhood with Unicel C-7488 Replacement Filter Cartridge. Featuring 106 square feet of 4-ounce basis weight media made of 100-percent polyester Reemay... more

    $104.07 $78.49

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    Unicel 4CH-935 Replacement 35 SqFt Filter Cartridge for Hot Tub 219 Pleats

    Unicel 4CH-935 Replacement 35 SqFt Filter Cartridge for Hot Tub 219 Pleats

    Featuring 35 square feet of 3-ounce basis weight media made of 100-percent polyester Reemay material this Unicel 4CH-935 Cartridge Filter for Hot Tubs ensures high performance and dependable filtration over time. The uniform pleats and Reemay media... more

    $36.99

    FREE shipping

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    More information about Swimming Pools & Spas

    Best prices on Aqueon replacement filter cartridges medium, Unicel in Swimming Pools & Spas online. Visit Bizrate to find the best deals on top brands. Read reviews on Sports Equipment & Outdoor Gear merchants and buy with confidence.