10 Best Filter Cleaners: Save Money & Clean

Best Filter Cleaners?
Discover real users’ experiences with ten top-rated spa and pool filter cleaners that restore old filters, save money, and deliver deep, equipment-safe cleaning results.

Keeping your spa or pool filter clean is key to clear water and smooth performance. Top filter cleaners make this task simple and effective for all users.

Many real users report that these cleaners restore old filters to like-new condition overnight. They save money by avoiding frequent replacements. Experts trust them for deep cleaning without harming equipment.

Dive into our guide to find the best options tailored to your needs. You’ll discover tips that ensure lasting results every time.

List of Top 10 Filter Cleaners

Title	Best For	Price
HTH Spa 86123 Filter Cleaner, Spa & Hot Tub Chemical Deep Cleans Filter, Extends Filter Life, 16 oz	This product is perfect for spa and hot tub owners who want to keep filters clean and extend their life. It helps ensure clear water in all types of spas.	View on Amazon
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	This Hot Tub Filter Cleaner is perfect for hot tub and pool owners. It’s great for anyone who wants a clean and well-functioning spa.	View on Amazon
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. (1-Gallon)	The Ultimate Spa Filter Cleaner Fast-Acting Spray is perfect for hot tub and pool owners who want a quick way to clean their filters without soaking them overnight. It helps keep water crystal-clear and equipment lasting longer for folks who love easy upkeep.	View on Amazon
Spa Depot Power Soak Hot Tub & Pool Filter Cartridge Cleaner – 2 x 1 lb. Bottles	This Spa Depot Power Soak is perfect for hot tub and pool owners. It’s great for anyone who wants a clean filter.	View on Amazon
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	This fast-acting spray is perfect for pool and hot tub owners who want quick cleaning without long waits. It’s great for anyone who needs to keep their filters clean and working well to enjoy clear water fast.	View on Amazon
SpaGuard Filter Cleaner for Spas & Hot Tubs, 1 qt, Single, Removes Oils & Scale, Easy to Use, Helps Keep Water Clear	This SpaGuard Filter Cleaner is perfect for spa and hot tub owners who want to easily remove oils and scale from filters to keep water clear. It fits best for those who enjoy simple care that cuts down on chemical costs and boosts filter life.	View on Amazon
K&N Air Filter Cleaning Kit: Aerosol Filter Cleaner and Oil Kit; Restores Engine Air Filter Performance; Service Kit-99-5000, Multi	This kit is perfect for car and truck owners who use K&N filters. It is ideal for DIY mechanics and anyone who wants to restore airflow and keep their engine running like new.	View on Amazon
Pool Filter Cleaner – 6 MONTH SUPPLY – 2 to 4 Uses – 32 oz Concentrated Pool Cartridge Filter Cleaner – Removes Dirt, Grease, Oil – No Foam or Residue – Soak & Spray Cleaner – Safe, Natural, Effective	This pool filter cleaner is perfect for pool owners. It is for anyone who wants a clean pool with easy maintenance.	View on Amazon
Aquatix Pro Premium Pool & Spa Filter Cartridge Cleaner, Removes Debris & Dirt from Pool Filters in Seconds, Heavy Duty & Durable Pool Cartridge Filter Cleaner, for a Clean Flow of Water Today! (1)	This product is perfect for pool and spa owners. It’s for anyone who wants an easy way to clean their filters.	View on Amazon
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	This ACTIVE Spa Hot Tub Filter Cleaner is perfect for hot tub and pool owners. It’s for anyone who wants a clean filter and a longer-lasting one.	View on Amazon

Detailed Reviews

Discover the best filter cleaners with our expert guide. We’ve analyzed top products based on performance and customer feedback. This guide helps you find the perfect cleaner for your needs. Get ready for clean water and a longer filter life!

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

Keep your spa filter clean with the easy-to-use HTH Spa Filter Cleaner. This 16 oz bottle deep cleans all filter types and extends filter life. Use it to make sure your spa water stays clear and inviting.

The cleaner works great with all spa types, whether you use bromine, chlorine, or biguanide. It improves performance so your spa runs smoother and better.

Add it to your regular care routine every 90 days or when you change water. You’re all set for clean, clear fun in your hot tub.

Pros	Cons
Easy-to-use cleaner keeps your spa filter clean. Deep cleans all filter types for better performance. Extends filter life so you save money. Ensures your spa water stays clean and clear. Works with all spas, including bromine and chlorine systems.	Awkward to apply without gloves Works slower than some competitors Strong chemical smell lasts long

Perfect For:

This product is perfect for spa and hot tub owners who want to keep filters clean and extend their life. It helps ensure clear water in all types of spas.

Ready to Purchase?

View Price on Amazon

2. 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

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

Keep your hot tub water clean with our filter cleaner. It removes dirt, grease, and other unwanted buildup. This product is a 6-month supply.

Our cleaner works on various filter types. It is also easy to use.

This cleaner is made in the USA. It is a safe and non-toxic solution.

Pros	Cons
Deep cleans hot tub filters fast and well. Offers a 6-month supply with 4-8 uses. Safe, non-toxic formula protects your spa. Works on all filter types easily. Makes weekly maintenance simple and quick.	Time-consuming soak required for deep cleans Needs dilution with water before use Not suitable for instant filter fixes

Perfect For:

This Hot Tub Filter Cleaner is perfect for hot tub and pool owners. It’s great for anyone who wants a clean and well-functioning spa.

Ready to Purchase?

View Price on Amazon

3. 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. (1-Gallon)

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. (1-Gallon)

Tired of a dirty spa or pool filter? Ultimate Spa Filter Cleaner is the answer. This fast-acting spray cleans in just 5 minutes.

It improves your filter’s performance. The cleaner removes tough build-up easily. Your spa or pool water will be clear.

Pros	Cons
Quick cleaning in just 5 minutes—no wait! Extends your filter and pool life easily. Safe for every type of spa filter. Removes tough oils, grease, and lots. No sticky mess or foam left behind.	May require frequent cleaning depending on use. Effectiveness may vary based on filter condition. Not a replacement for regular filter maintenance.

Perfect For:

The Ultimate Spa Filter Cleaner Fast-Acting Spray is perfect for hot tub and pool owners who want a quick way to clean their filters without soaking them overnight. It helps keep water crystal-clear and equipment lasting longer for folks who love easy upkeep.

Ready to Purchase?

View Price on Amazon

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

Keep your spa and pool filters clean! Spa Depot Power Soak is easy to use. It will help your filter last longer.

This cleaner has professional strength enzymes. It will deep clean your filters.

You get two 1 lb. bottles. It’s economical and won’t cause foaming. Enjoy your clean water!

Pros	Cons
Deep-cleans pleated spa and pool filters quickly. Offers professional strength with helpful enzymes. Includes two easy-to-use 1 lb bottles. Never causes water to foam up. Saves money with economical formula.	Strong odor might linger after use. Requires soaking time before rinsing. Limited quantity in each bottle.

Perfect For:

This Spa Depot Power Soak is perfect for hot tub and pool owners. It’s great for anyone who wants a clean filter.

Ready to Purchase?

View Price on Amazon

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

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

Say goodbye to dirty filters and hello to crystal-clear water. The Ultimate Spa Filter Cleaner from Black Diamond Stoneworks is a fast-acting spray that cleans your hot tub or pool filters in just 5 minutes, with no soaking required.

This cleaner works on all filter types safely and removes tough build-up like body oils and grease without leaving any residue. It extends filter life for better equipment performance. Plus, it pairs perfectly with your regular sanitizers for easy maintenance.

Pros	Cons
Cleans filters fast in just 5 minutes. Extends filter life for better performance. Safe for all filter types without damage. Removes oils, lotions, and grease quickly. Leaves no residue for smooth operation.	Spray-only formula may not remove very deep clogs. Bottle size might require multiple purchases for large pools.

Perfect For:

This fast-acting spray is perfect for pool and hot tub owners who want quick cleaning without long waits. It’s great for anyone who needs to keep their filters clean and working well to enjoy clear water fast.

Ready to Purchase?

View Price on Amazon

6. SpaGuard Filter Cleaner for Spas & Hot Tubs, 1 qt, Single, Removes Oils & Scale, Easy to Use, Helps Keep Water Clear

SpaGuard Filter Cleaner cleans spa filters fast. It removes scale, oils, and dirt.

Spray or soak for easy use. It boosts filtration and water flow. Filters last longer.

Works on all spa filters. It keeps water clear. Trusted, simple, and effective.

Pros	Cons
Removes stubborn scale and dirt effectively. Improves water filtration for a cleaner spa. Easy-to-use spray applicator for quick cleaning. Keeps your spa water crystal clear. Extends your filter’s life and saves money.	May require thorough rinsing to avoid chemical leftover. Could create a messy cleanup during application. Might need frequent use for heavy buildup.

Perfect For:

This SpaGuard Filter Cleaner is perfect for spa and hot tub owners who want to easily remove oils and scale from filters to keep water clear.
It fits best for those who enjoy simple care that cuts down on chemical costs and boosts filter life.

Ready to Purchase?

View Price on Amazon

7. K&N Air Filter Cleaning Kit: Aerosol Filter Cleaner and Oil Kit; Restores Engine Air Filter Performance; Service Kit-99-5000, Multi

Bring back your engine’s power with the K&N Air Filter Cleaning Kit. It cleans all oiled K&N air filters to restore top performance.

This kit removes build-up that clogs your filter. Power Kleen dissolves grime and old oil. Rinse it off and dry the filter.

Add fresh K&N Red Filter Oil. It keeps contaminants away. Your filter works like new again.

Follow these steps: Spray, rinse, dry, and oil. Get easy efficiency back in your engine. Drive with renewed airflow today.

Pros	Cons
Cleans all oiled K&N air filters well. Restores top filter performance fast. Dissolves grime with strong degreaser. Applies fresh oil for great protection. Renews air flow like new.	Time-consuming cleaning process needs patience and effort. Only works for specific oiled K&N filters, not others. Messy to use with sprays and oils.

Perfect For:

This kit is perfect for car and truck owners who use K&N filters. It is ideal for DIY mechanics and anyone who wants to restore airflow and keep their engine running like new.

Ready to Purchase?

View Price on Amazon

8. Pool Filter Cleaner – 6 MONTH SUPPLY – 2 to 4 Uses – 32 oz Concentrated Pool Cartridge Filter Cleaner – Removes Dirt, Grease, Oil – No Foam or Residue – Soak & Spray Cleaner – Safe, Natural, Effective

Pool Filter Cleaner - 6 MONTH SUPPLY - 2 to 4 Uses - 32 oz Concentrated Pool Cartridge Filter Cleaner - Removes Dirt, Grease, Oil - No Foam or Residue - Soak & Spray Cleaner - Safe, Natural, Effective

Pool Filter Cleaner keeps your pool water crystal clear and equipment running smoothly. This concentrated formula removes dirt, grease, and oils without harming filters or water.

It works with cartridge, sand, and DE filters, making maintenance easy for everyone. Deep soak cleans tough buildup by mixing half a cup with water and soaking for hours. Quick spray provides weekly refresh by diluting and spraying directly.

Our natural ingredients ensure safe, effective results every time. The 32 oz bottle offers a 6-month supply with 2 to 4 uses. Proudly made in the USA with high standards for quality and care.

Pros	Cons
Super clean filters with easy soak method. Six-month supply for rare reordering. Natural ingredients keep pools safe. Works on all filter types. Quick spray for fast fixes.	Takes long time to soak the filter. Must rinse well to avoid contamination. Needs careful mixing with water first.

Perfect For:

This pool filter cleaner is perfect for pool owners. It is for anyone who wants a clean pool with easy maintenance.

Ready to Purchase?

View Price on Amazon

9. Aquatix Pro Premium Pool & Spa Filter Cartridge Cleaner, Removes Debris & Dirt from Pool Filters in Seconds, Heavy Duty & Durable Pool Cartridge Filter Cleaner, for a Clean Flow of Water Today! (1)

Aquatix Pro Premium Pool & Spa Filter Cartridge Cleaner, Removes Debris & Dirt from Pool Filters in Seconds, Heavy Duty & Durable Pool Cartridge Filter Cleaner, for a Clean Flow of Water Today! (1)

Tired of pool cleaning taking all day? The Aquatix Pro Premium Cartridge Cleaner makes it easy. It removes debris and dirt in seconds.

This heavy-duty cleaner works fast. It is durable and long-lasting. Get a clean flow of water with ease.

This cleaner is compatible with most filters. You get a one-year warranty with your purchase.

Pros	Cons
Saves you time on pool cleaning! Cleans your filter in seconds with ease. Durable design means it’s built to last. Works with most standard pool filters. Get a full refund with our satisfaction promise!	May not fit all filter models perfectly Requires manual effort for tough, stuck debris Filter not included — buy separately

Perfect For:

This product is perfect for pool and spa owners. It’s for anyone who wants an easy way to clean their filters.

Ready to Purchase?

View Price on Amazon

10. 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

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

ACTIVE Spa Hot Tub Filter Cleaner is a concentrated 32 oz liquid that restores dirty cartridge filters. It lets you soak overnight for a deep, natural clean.

Mix and soak for 12 hours. Saves money by extending filter life. Made in the USA.

Pros	Cons
Concentrated 32oz gives more cleanings per bottle. Overnight soak cleans filters deeper than sprays. Extends cartridge life and saves replacement cost. Works with all major brands and pleated types. Made in USA with professional-grade ingredients.	Overnight soaking time required, no instant results. Dilution needed for each use, adds steps. Only 2-4 uses per bottle, buy often.

Perfect For:

This ACTIVE Spa Hot Tub Filter Cleaner is perfect for hot tub and pool owners. It’s for anyone who wants a clean filter and a longer-lasting one.

Ready to Purchase?

View Price on Amazon

Buying Guide

Keeping your spa or pool water clean is important. Using the right filter cleaner makes this task easier. Many people report amazing results from these cleaners.

Real users often share how these cleaners bring old filters back to life. They love how they save money by avoiding replacements. People also like how the cleaners help their equipment work better.

Here are some things to think about when you’re choosing a filter cleaner:

Type of Filter: Make sure the cleaner works with your filter. Some cleaners work on all types, like cartridge or sand filters. Check the label to be sure.
Cleaning Method: Some cleaners need you to soak the filter. Others are fast-acting sprays. Think about how much time you want to spend cleaning.
Ingredients: Look for cleaners that are safe and non-toxic. Some use natural ingredients. This is better for your spa or pool.
Size and Value: Consider how much cleaner you get in the bottle. Some offer a 6-month supply. Compare prices to find the best deal.
Ease of Use: Choose a cleaner that is easy to use. Some are simple to spray on. Others have easy-to-follow instructions.
User Reviews: Read what other people say about the cleaner. This can help you see if it works well. It also helps to learn about any problems.