Top 10 Caldera Spa Filters for Hot Tubs – Pool & Spa Replacement Parts

As an Amazon Associate I earn from qualifying purchases.

1. Cryspool

#ad

1019401, Caldera Spas, PCD50N, 73532, FC-3963, Unicel C-7350, 1 Pack, Cryspool Spa Filter Compatible with Caldera 50, 50 sq.ft hot tub Filter

#ad
Cryspool #ad - Cryspool is an independent brand. Sizelength:10-3/4"; outer dimension:7"; top: semi-circular handle; Bottom: 2-11/16" opening;Filtration Area: 50 sq. Ft. Note: the manufacturer’s name and part number have been used for reference purposes only.

It makes water filtration more thoroughly and service life longer. 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. 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.

Qualified materialthe advanced material of trilobal fibers is utilized. Cutting-edge technologies make the capacity higher than common point-bond fabric. It’s recommended to clean the filter when the pressure gauge reaches the predetermined value, so as to take full advantage of its performance. Compatible modelscaldera 50, pcd50n, c-7350, 73532, 1019401, caldera spas, fc-3963.
BrandCryspool #ad
ManufacturerCRYSPOOL #ad
Height10.75 Inches
Length7 Inches
Width7 Inches
Part NumberCP-07022
ModelCP-07022

2. Unicel

#ad

Tiger River 31114, Unicel C-8465 65 Square Foot Hot Tub and Spa Replacement Pool Filter Cartridge for Caldera 76136, Hot Springs 31114, 71828, 71827

#ad
Unicel #ad - Model: model c-8465 hot tub and spa replacement filter cartridge with a 1-year manufacturer warranty. Pleat count: this replacement cartridge has a pleat count of 234. Good replacement for: replaces caldera spas 76136; hot springs Spas 31114, 71827, 71828; and Tiger River Spas 31114. Quality replacement filter: High quality 65 square foot filter media replacement cartridge that is made in the USA. Size: top and bottom hole: 3-inch opening | Diameter: 8. 5 inches.
BrandUnicel #ad
ManufacturerUnicel - Distribution #ad
Height0 Inches
Length0 Inches
Weight4.28 Pounds
Width0 Inches
Part NumberC8465
ModelC-8465

3. Cryspool

#ad

C-8399,PCD100W, FC-3965,100 sq.ft, 1 Pack, Cryspool Spa Filter Compatible with Caldera Utopia 73722,1039607

#ad
Cryspool #ad - And we are equipped with professional service to provide technical support for every customer. Compatible modelscaldera utopia 73722, pcd100w, 1039607, fc-3965, geneva, c-8399, niagara, aspire series, caldera spa tahitian, Caldera 100. Cryspool is an independent brand.

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. Ft. It makes water filtration more thoroughly and service life longer. Qualified materialthe advanced material of trilobal fibers is utilized. 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.

It’s recommended to clean the filter when the pressure gauge reaches the predetermined value, so as to take full advantage of its performance. Cutting-edge technologies make the capacity higher than common point-bond fabric. Sizelength: 16 1/2"; outer dimension: 8"; top: handle; Bottom: 3 1/2" open;Filtration Area: 100 sq. Note: the manufacturer’s name and part number have been used for reference purposes only.
BrandCryspool #ad
Manufacturercryspool #ad
Height16.5 Inches
Length6 Inches
Width6 Inches
Part Number1
ModelCP-08010

4. Guardian Filtration Products

#ad

FC-3964, Hot Spot & More. Made in The USA, Watkins, Unicel C-7375, Caldera Spa 75, Guardian Filtration Products 714-216-01 Spa Filter Replacement for Pleatco PCD75N

#ad
Guardian Filtration Products #ad - 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! 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.

Our premium filter material keeps your water clearer and is easier to clean. Of premium filter material is easier to clean, filters better and lasts longer. Dimensions - this replacement pool filter cartridge has a handle top, 2 11/16 inch 2. 6875" open hole bottom, 7 inch 7" diameter and 14 7/8 inch 14. 875" length. The 10 sq. Filters may be green or blue replacement filter - get purer, hot spot spas, caldera spas, cleaner water in your pool or spa with these replacement cartridge filters compatible for Pleatco PCD75N, filbur FC-3964, unicel c-7375, Watkins and other manufacturers.

Multi pack savings - choose from our value savings single, double or 4 pack filter bundle. 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. Guardian filtration products has been operating out of northwest Pennsylvania since 2003. Filters may Be Green or Blue.
BrandGuardian Filtration Products #ad
ManufacturerGuardian Filtration Products #ad
Height5.51 Inches
Length2.68 Inches
Width2.72 Inches
Part Number714-216
Model714-216

5. Guardian Filtration Products

#ad

Pleatco Pcn50N, Watkins, Guardian Filtration Products 710-160-01 Pool Spa Filter Replaces Caldera Spa 50 2003- C-7350,FC-3963 Unicel C7350

#ad
Guardian Filtration Products #ad - 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.

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. Filters may be green or blue replacement filter - get purer, c-7350, cleaner water in your pool or spa with these replacement cartridge filters compatible for Caldera Spa 50 2003, fc-3963 unicel c7350, Pleatco PCN50N Filters May Be Green or Blue.

Our premium filter material keeps your water clearer and is easier to clean. Multi pack savings - choose from our value savings single, double or 4 pack filter bundle. Dimensions - diameter: 7"; length: 10 3/4"; top: Handle Bottom: Open Hole: 2 11/16". 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.
BrandGuardian Filtration Products #ad
ManufacturerGuardian Filtration Products #ad
Height4.09 Inches
Length2.68 Inches
Width2.68 Inches
Part Number710-200
Model710-200

6. Caldera

#ad

Caldera Spa 100 Sq Ft Filter Utopia Series 2005 to Current Part #73722

#ad
Caldera #ad - This spa filter is designed to fit the following hot tubs and spas: caldera tahitian 2005-Current, Caldera Geneva 2005-Current, Caldera Niagara 2005-Current, Caldera Aspire 2004-2008 and Caldera Elation 2003-2010.
BrandCaldera #ad
ManufacturerWatkins Wellness #ad
Weight96 ounces
Part Number73722
Model73722

7. Hot Spring

#ad

Hot Spot, Watkins item 71825, Filter Cartridge OEM for Hot Spring, Solana, and Caldera spas

#ad
Hot Spring #ad - Hot spot rlx 1998-2002; slx 1998-2002; sx 2011-current, tx 2011-current; slxtra 2001-2002; re 1998-2002; SE 1998-2000 Caldera tarino 2013-Current. Solana sx 2003-2010; tx 2000-2010; rx 2003-2009. 71825 hot spring replacement Filter is for the following models:. Hot spring grandee 1991-current; vista 2004-2013; envoy 2004-current; vanguard 2001-current; grandee nxt 2014-current; envoy nxt 2014-current; jetsetter nxt 2014-current; jetsetter 1991-Current; Prodigy 1991-Current; Sovereign 1991-Current; Alccolade 2005-2006; Landmark 1997-2003; Summit 1995-1996; Aria 2007-2015; Highlife ILE 2003.
BrandHot Spring #ad
ManufacturerWatkins #ad
Height8 Inches
Length12 Inches
Width8 Inches
Part NumberPD-33803
ModelPD-33803

8. Guardian Filtration Products

#ad

Guardian Filtration Products Spa Hot tub Filter Replaces Unicel c-8399 Pleatco PCD100W Filbur FC-3965

#ad
Guardian Filtration Products #ad - 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. Multi pack savings - choose from our value savings single, double or 4 pack filter bundle.

Guardian filtration products has been operating out of northwest Pennsylvania since 2003. Dimensions -length: 16-1/2", diameter: 8", top: handle, Bottom opening: 3-5/8". Our premium filter material keeps your water clearer and is easier to clean. 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.

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! Filters may be green or blue replacement filter - get purer, cleaner water in your pool or spa with these replacement cartridge filters compatible for Unicel c-8399 Pleatco PCD100W Filbur FC-3965 Filters May Be Green or Blue.
BrandGuardian Filtration Products #ad
ManufacturerGuardian Filtration Products #ad
Height16.5 Inches
Length8 Inches
Width8 Inches
Part Number816-259
Model816-259

9. SpiroPure

#ad

SpiroPure Replacement for Unicel C-7350 Filbur FC-3963 Pleatco PCD50N Caldera Spas 50 73532 1019401 Hot Tub Spa Pool Filter Replacement Cartridge

#ad
SpiroPure #ad - Compatible with unicel c-7350 filbur fc-3963 pleatco pcd50n Caldera Spas 50 73532 1019401 Hot Tub Spa Filter. Easy to install, durable filter cartridges that allow for high filtration performance and efficiency. A strong inner core means increased strength without hindering water flow or filtration performance. Spiropure pool and spa filter cartridges offer long-lasting, durable filter media with high dirt holding capacity for clear, sparkling water in your pool or hot tub spa. Outer diameter: 7" length: 10 3/4" top style: closed handle; Bottom Style: 2-11/16" Open; Media: 50 SF.
BrandSpiroPure #ad
ManufacturerSpiroPure #ad
Height10.8 Inches
Length7 Inches
Width7 Inches
Part NumberSP-PS-3963
ModelSP-PS-3963

10. SpiroPure

#ad

SpiroPure Replacement for Pleatco PRB35-IN Unicel C-4335 Filbur FC-2385 Thermo Spas FL1008 Caldera Spas 74148 Waterway 35 817-3501 6000-136 Hot Tub Spa Pool Filter Replacement Cartridge Case of 6

#ad
SpiroPure #ad - Outer diameter: 4 15/16" length: 9 1/4" Media: 35 SF. Spiropure pool and spa filter cartridges offer long-lasting, durable filter media with high dirt holding capacity for clear, sparkling water in your pool or hot tub spa.

Compatible with pleatco prb35-in prb35-in-m unicel c-4335 filbur fc-2385 thermo spas fl1008 caldera spas 74148 waterway 35 817-3501 6000-136 Baleen AK-3015 PAS-1444 Sundance Spas 6000-136 Hot Tub Spa Filter. A strong inner core means increased strength without hindering water flow or filtration performance. Easy to install, durable filter cartridges that allow for high filtration performance and efficiency.
BrandSpiroPure #ad
ManufacturerSpiroPure #ad
Height9.3 Inches
Length4.9 Inches
Width4.9 Inches
Part NumberSP-PS-2385 (Case of 6)
ModelSP-PS-2385 (Case of 6)