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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)

  • Based on 4,308 reviews
Condition: New
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Availability: In Stock.
Fulfilled by Amazon

Arrives Saturday, Dec 20
Order within 6 hours and 8 minutes
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Size: 1-Gallon


Features

  • Fast & Effective Cleaning: Skip the overnight soaking! Ultimate Spa Filter Cleaner works in just 5 minutes, saving you time and effort.
  • Enhances Filter Performance: Improves efficiency and extends the lifespan of your spa or pool filter, ensuring crystal-clear water every time.
  • Safe for All Filters: Safely cleans all types of pleated spa and pool filter cartridges without damaging them.
  • Removes Tough Build-Up: Quickly eliminates body oils, suntan lotion, grease, and other organic material, leaving your filter spotless.
  • Residue-Free Formula: Rinses off easily with no slimy residue, preventing foam and ensuring smooth operation of your spa or hot tub.
  • Compatible with All Sanitizers: Works seamlessly with any pool or spa sanitizer for versatile and reliable use.

Product Dimensions: 4.5 x 7 x 11.25 inches


Item Weight: 9.11 pounds


Manufacturer: Black Diamond Stoneworks


Item model number: SFC-G


Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Saturday, Dec 20

Yes, absolutely! You may return this product for a full refund within 30 days of receiving it.

To initiate a return, please visit our Returns Center.

View our full returns policy here.

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Top Amazon Reviews


  • Makes the pool filter cleaning process a breeze
Size: 1-Gallon
Worked wonders on my pool filters. Seems to break down the gunk quickly and makes the cleaning process so much better and easier
Reviewed in the United States on August 19, 2025 by Martinjm

  • Makes cleaning your filter so much easier and keeps it looking nicer longer
Size: 1-Gallon
This product works great. I am so happy with how well it cleans my filter. I highly recommend it. Here’s a before and during pics of a cleaning to show the stark difference and how well it cleans.
Reviewed in the United States on July 13, 2025 by Eric Eric

  • It works and price is very good.
Size: 1-Quart
Worked well on my filter. Very easy to use.
Reviewed in the United States on July 9, 2025 by Kristen K Black

  • Great cleaner and works!
Size: 1-Gallon
Great cleaner! It works for our salt water hot tub filters. Just spray, wait for several mins and rinse. Way better than dealing with those tablets and submerging the 2 filters into solution. Plus you can’t beat the price in comparison with this tablets. I’ve used it for a year already. Just got my second jug of it. ... show more
Reviewed in the United States on June 17, 2025 by PNWMama

  • The best spa filter cleaner ever!
Size: 1-Quart
I've used the overnight soak method with my last spa filters. Dragging buckets around, sloshing water, the wait, and the sometime residue that would bubble in the spa. Not with this product! Spray on the dirty filter, do a quick chore for a few minutes, (or sit with a cool one), and then rinse the dirt and debris out with your garden hose. Dirt gone. That fast. No slime, no product residue, no overnight. Quick, easy, and clean. Tip: I've found that if you change your filter, and don't have any time to clean it right then, come back to the dirty filter and give it a quick water spray to wet it first. Then spray with the filter cleaner. Good as new! No residue bubbles in the spa. Fantastic product! Thank you seller! ... show more
Reviewed in the United States on July 22, 2024 by JC

  • Works but LOOK OUT!
Size: 1-Quart
Do it arrived with no damage or leaking BUT either I got a defective bottle or a defective spray cap because as soon as I attached the spray cap it seemed like it was on but detached and half of this went all of my kitchen floor (I cleaned up the other area before thinking to take a picture). Now... This is a $20+ bottle the size of a standard Windex bottle... That's expensive as it is let alone for half of it to be all over my floor. I tried several times and verified that the bottle and the spray cap DO NoT lock in (essentially making the spray bottle useless) Luckily I had a spare glass spray bottle and poured the rest of it in there. I am happy to report that this solution DOES WORK to easily clean grime off of my hot tub very easily/ fast without leaving any unwanted residue (and our hot tub is somewhat porous). I will be reaching out to Amazon to see if they can do anything to help me out with the fact that half of the product went all over my floor because of a defect and/or design flaw with the spray cap. Aside from that, I would have given it 4.5 stars out of 5... 5 out of 5 if the price was more reasonable. ... show more
Reviewed in the United States on September 30, 2024 by Amanda T Amanda T

  • Very effective product.
Size: 1-Gallon
Worked great and was easy to apply. Very satisfied with this product.
Reviewed in the United States on August 4, 2025 by Mitchell Gelbard

  • Filter cleaner
Size: 1-Gallon
Good stuff !!
Reviewed in the United States on July 16, 2025 by Micheal Snyder

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