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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. (1-Gallon)

  • Based on 4,567 reviews
Condition: New
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Availability: In Stock.
Fulfilled by Amazon
Arrives Monday, Jul 27
Order within 8 hours and 46 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.

Description

How we make cleaning easy We started as Denny's Carpet Cleaning, a family owned business. After 20 great years we saw a need for stone restoration, cleaning, and repair. We decided to add those services. We wanted to use products that were safe, free of harsh chemicals, effective, without damaging the stone in any way. We partnered with a chemist to create the perfect products. We wanted our clients to be able to maintain the new look, and protect their surfaces. We decided to bottle and sell our products. Black Diamond Stoneworks was born! Visit the Store We make products that are: SAFE - bio based, hypoallergenic, safe around kids, and pets, formulated without harsh chemicals and abrasives. EFFECTIVE - They actually work! EASY TO USE - Simple, easy to follow directions. SAVES TIME AND MONEY - Protecting the surfaces in your home so they stay cleaner, and last longer. Our commitment is to make cleaning easy, so that you can enjoy your life! No harsh chemicals, no acids, no chlorine. Will Remove Body Oils, Suntan Lotion, And Other Organic Material. Just spray and it's clean! Get The Most Out Of Your Pool and Spa Filters. Improve The Efficiency Of The Filter As Well As Keeping The Water Crystal Clear.

Product Dimensions: 4.5 x 7 x 11.25 inches


Item Weight: 8.9 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: Monday, Jul 27

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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Similar Products

Top Amazon Reviews

    • Makes cleaning the pool filter a breeze
Size: 1-Quart/1-Gallon(Combo)
This is the best cleaner. It makes the filter look brand new and cleans with ease. It also works well on my pool vacuum filter
Reviewed in the United States on June 23, 2026 by Jan
    • Works great, no instructions though
Size: 1-Gallon
Worked amazingly well at cleaning out my sand filter. Wish there were instructions on how to do it, I had to get instructions from another company's website to properly do it. But it worked really well. Couldn't get my pool filtering at all, this cleaned it out and got it working perfectly again.
Reviewed in the United States on May 14, 2026 by John
    • Black Diamond Stoneworks Ultimate Spa Filter Cleaner: Revitalize Your Spa Experience
Size: 1-Gallon
The Black Diamond Stoneworks Ultimate Spa Filter Cleaner has transformed my spa maintenance routine, delivering impressive results and restoring water clarity like never before. With its effective cleaning formula and easy application, this product offers a convenient solution for keeping spa filters in peak condition. Pros: Powerful Cleaning Formula: The cleaning solution is remarkably effective in breaking down and removing accumulated dirt, oils, and contaminants from spa filters. It tackles both visible and unseen debris, resulting in improved water quality. Easy Application: The product's user-friendly application process requires minimal effort. Following the provided instructions ensures that the filter cleaning process is hassle-free. Restored Water Clarity: Regular use of the Black Diamond Stoneworks Ultimate Spa Filter Cleaner translates to noticeably clearer and fresher spa water. The cleaner filters contribute to a more enjoyable and hygienic spa experience. Versatile Compatibility: The product is suitable for various spa filter types, ensuring its applicability to a wide range of spa systems. Economical: The product's effectiveness means that a little goes a long way. A single bottle can last through multiple cleaning cycles, providing good value for its cost. Cons: Chemical Smell: Like many cleaning solutions, the product has a distinct chemical odor. Ensuring proper ventilation during application can help mitigate this. Safety Precautions: As with any cleaning product, it's essential to follow safety precautions and keep the cleaner out of reach of children and pets. In summary, the Black Diamond Stoneworks Ultimate Spa Filter Cleaner is a game-changer for spa owners seeking a simple yet effective way to maintain optimal water quality. Its powerful cleaning formula, ease of use, and noticeable results make it a valuable addition to any spa maintenance routine. While the chemical smell and safety considerations are points to keep in mind, the overall benefits and restored spa clarity provided by this product make it an essential tool for enhancing your spa experience. ... show more
Reviewed in the United States on August 30, 2023 by Jon Prince
    • Awesome Cleaner!
Size: 1-Gallon
Review Image by Paul M
This stuff worked Great! This plus the water comb I used got my filters looking like new again. I let is sit a bit longer than advised, but it definitely got them cleaner than I have been able to in the past.
Reviewed in the United States on April 5, 2026 by Paul M
    • Good product
Size: 1-Gallon
Works as advertised
Reviewed in the United States on June 9, 2026 by Harold L. Gilliam
    • Extremely effective.
Size: 1-Gallon
If I hadn't tried to clean other filters with my own ways, I wouldn't have fully appreciated this product. I'm always reverse engineering product ingredients (science background) and using what I have or can order to do the trick. Each time previously I could wash the filters yet still see the dirt in the fins. I usually ended up just replacing the filters. I tried that for 2 years and then I gave this a try. It visibly removed the dark sludge from the filter. I wish I'd have recorded it. I'll try to record next time and update. I'm sure the ingredients are available in another product, but I'm not spending any more time trying to save five dollars. I'll keep buying this . ... show more
Reviewed in the United States on February 22, 2026 by D. Juniper
    • Works but LOOK OUT!
Size: 1-Quart
Review Image by Amanda T
Review Image by Amanda T
Review Image by Amanda T
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
    • No soak!
Size: 1-Quart
No soak needed — way easier than the usual filter cleaning routine I’ve used other spa filter cleaners before, and most of them require a long soak (which I never have the patience for). This one was a lot more convenient. I sprayed it directly on the filter, let it sit briefly, and rinsed — and it actually worked. It pulled out visible buildup and even removed staining that had been there for a while. The filter looked noticeably cleaner compared to just rinsing alone. What stood out: • No soaking required (huge time saver) • Broke down buildup quickly • Helped remove stains, not just surface debris • Smells surprisingly good compared to most cleaners After cleaning, water flow improved and the filter just looked fresher overall. It made regular maintenance feel a lot less like a chore. If you want something quick and effective without the whole soak process, this is definitely worth it. ... show more
Reviewed in the United States on March 17, 2026 by Shadoe Daniels

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