10 Best hot tub filter cleaners of 2025

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Best Choice

1

LEISURE TIME
Leisure Time O-02BX Filter Clean, 1-Quart, 2-Pack
Main highlights

Versatile for All Filter Types
Suitable for cartridge, sand, and D.E filters, this product ensures comprehensive cleaning for various filtration systems, enhancing their efficiency and lifespan.

Ideal for Overnight Soaking
Best used by soaking filters overnight, allowing thorough cleaning. Users recommend having an extra set of filters to ensure continuous spa use.

Highly Effective Cleaning
Customers consistently praise the product's ability to make filters look as good as new, highlighting its superior cleaning performance.
Key specs
- Volume:1 quart
- Purpose:Pool filter cleaner
- Application:For cartridge, sand, D.E
- Form:Liquid
- Compatibility:All types: cartridge, sand, D.E
9.6

Exceptional

Our Rating

9.9
Simple to clean

9.1
Simple to use

8.0
worth the money
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Value for Money

2

Spa Depot

Spa Depot Power Soak Hot Tub & Pool Filter Cartridge Cleaner - 2 x 1 lb. Bottles
9.5

Excellent

Our Rating

9.1
Simple to use

8.9
Durability

8.2
worth the money
3

Tillbrook

Hot Tub Filter Cleaner - 6 Month Supply - 4 to 8 Uses - 32 oz Spa Filter Cartridge Cleaner - Hot Tub & Pool Filter Cleaner Soaking Solution - No Residue or Foam - Restores Filter - Safe & Non-Toxic
9.4

Excellent

Our Rating
4

HTH
HTH Spa 86123 Filter Cleaner, Spa & Hot Tub Chemical Deep Cleans Filter, Extends Filter Life, 16 oz
Main highlights

Key Features
Easily maintains spa filters, enhancing performance and extending filter life for crystal clear water. Compatible with all spa types.

Ideal Use Cases
Perfect for regular spa maintenance or a 90-day refresh, especially in spas using bromine, chlorine, or biguanide sanitizing systems.

Customer Praise
Users frequently commend its effectiveness in deep cleaning, noting significant improvements in water clarity and filter lifespan.
9.3

Excellent

Our Rating

8.2
Simple to use

8.0
worth the money

8.0
Aroma
5

Black Diamond Stoneworks
Black Diamond Stoneworks Ultimate Spa Filter Cleaner Fast-Acting Spray. Instant Clean for Hot Tub & Pool Filters Leaving Behind no Sticky Residue. Prolongs Filter Life and Pool Equipment. No Soaking
Main highlights

Instant Cleaning Efficiency
Spray and rinse for immediate removal of oils and debris.

Ideal for Spa and Pool Filters
Perfect for maintaining clarity and hygiene in water systems.

Praised for Ease of Use
Customers appreciate the simple and effective application process.
9.2

Excellent

Our Rating

9.7
Simple to clean

9.5
Simple to use

9.3
lasts a long time
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6

ACTIVE

ACTIVE Spa Hot Tub Filter Cleaner - 32oz (2-4 Uses) Cleaning Soaking Solution, Hot Tubs & Pool Cartridge Cleaner, Natural Power Degreaser to Revive & Prolong O-Filters Life Time - Made in USA
9.1

Excellent

Our Rating

8.2
Simple to use

8.0
worth the money

8.0
Aroma
7

LEISURE TIME
Leisure Time O Filter Clean Cartridge Cleaner for Spas and Hot Tubs, 32 fl oz
Main highlights

Key Features and Benefits
Enhances filter efficiency and lifespan, compatible with multiple purification systems, includes 32 fl oz of powerful cleaning chemicals.

Ideal Use Cases
Perfect for use when changing spa water, works exceptionally on cartridge, D.E., and sand filters for removing contaminants overnight.

Customer Reviews Highlight
Most praised for its effectiveness in thoroughly cleaning filters, leaving them like new and significantly improving water quality.
8.9

Very Good

Our Rating

9.1
Simple to use

8.4
worth the money
8

MAV AquaDoc
Hot Tub Filter Cleaner Soak, Pool Filter Cleaner & Pool Cartridge Cleaner - Spa Filter Cleaner Soak & Spa Filter Cleaning Solution for HotTub Cartridges. Easy to Use Filter Degreaser | AquaDoc 32oz

20% Off
Main highlights

Soak Filter Solution Benefits
Increases efficiency and lifespan of spa and hot tub filters; easy to use; cleans Cartridge, Sand, and DE filters; professional grade; made in the USA.

Ideal For Spa And Hot Tub Owners
Perfect for those looking to maintain their spa, hot tub, or pool filters with minimal effort; suitable for commercial and home use.

Customer Praised Ease Of Use
Customers appreciate the convenience and effectiveness of the product, noting it leaves filters looking like new and extends filter lifespan.
Key specs
- Type:Filter Cleaner
- Dimensions:9.76 x 3.15 x 3.07 inches
- Cleaning Frequency:60 minutes soak
- Compatibility:Sand, Cartridge, DE Filters
- Size:N/A
8.8

Very Good

Our Rating

9.9
Aroma

9.3
Simple to use

8.2
lasts a long time
9

SpaGuard
SpaGuard Filter Cleaner (1 Qt)
Main highlights

Easy to Use Sprayer Applicator
The product features an easy-to-use sprayer applicator, making it simple to apply and clean filters effectively.

Ideal for Hot Tubs and Spas
Perfect for maintaining hot tubs and spas by breaking down oil and debris, ensuring clear water and optimal filtration.

Highly Effective Cleaning
Customers consistently praise the product's effectiveness in cleaning filters, with many noting the ease of use and impressive results.
Key specs
- Volume:2 Pounds
- Purpose:Keep water clear
- Application:Sprayer applicator
- Form:N/A
- Compatibility:N/A
8.7

Very Good

Our Rating

9.9
Simple to clean

8.0
worth the money

8.0
materials Quality
10

SUMMERBUDDY

SUMMERBUDDY Spa Filter Cleaner - Fast-Acting Spray for Instant Hot Tub & Pool Filter Cleaning, Prolongs Filter Life, No Soaking Required, Pool Cartridge Filter Cleaner

15% Off
8.6

Very Good

Our Rating

10 Best hot tub filter cleaners of 2025

1

Leisure Time O-02BX Filter Clean, 1-Quart, 2-Pack

9.9

9.1

8.0

How do we rank?

How do we rank?

Analyzing top stores

2

Spa Depot Power Soak Hot Tub & Pool Filter Cartridge Cleaner - 2 x 1 lb. Bottles

9.1

8.9

8.2

3

Hot Tub Filter Cleaner - 6 Month Supply - 4 to 8 Uses - 32 oz Spa Filter Cartridge Cleaner - Hot Tub & Pool Filter Cleaner Soaking Solution - No Residue or Foam - Restores Filter - Safe & Non-Toxic

4

HTH Spa 86123 Filter Cleaner, Spa & Hot Tub Chemical Deep Cleans Filter, Extends Filter Life, 16 oz

8.2

8.0

8.0

5

Black Diamond Stoneworks Ultimate Spa Filter Cleaner Fast-Acting Spray. Instant Clean for Hot Tub & Pool Filters Leaving Behind no Sticky Residue. Prolongs Filter Life and Pool Equipment. No Soaking

9.7

9.5

9.3

6

ACTIVE Spa Hot Tub Filter Cleaner - 32oz (2-4 Uses) Cleaning Soaking Solution, Hot Tubs & Pool Cartridge Cleaner, Natural Power Degreaser to Revive & Prolong O-Filters Life Time - Made in USA

8.2

8.0

8.0

7

Leisure Time O Filter Clean Cartridge Cleaner for Spas and Hot Tubs, 32 fl oz

9.1

8.4

8

Hot Tub Filter Cleaner Soak, Pool Filter Cleaner & Pool Cartridge Cleaner - Spa Filter Cleaner Soak & Spa Filter Cleaning Solution for HotTub Cartridges. Easy to Use Filter Degreaser | AquaDoc 32oz

9.9

9.3

8.2

9

SpaGuard Filter Cleaner (1 Qt)

9.9

8.0

8.0

10

SUMMERBUDDY Spa Filter Cleaner - Fast-Acting Spray for Instant Hot Tub & Pool Filter Cleaning, Prolongs Filter Life, No Soaking Required, Pool Cartridge Filter Cleaner

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