Black Diamond Stoneworks Ultimate Spa Filter Cleaner Fast-Acting Spray. Instant Clean for Hot Tub & Pool Filters Leaving Behi

4.4 4.4 out of 5 stars | 4,228 ratings

Price: 24.98

Last update: 02-15-2025


About this item

INSTANT RESULTS! Just Spray On The Filter, And Rinse Away The Soil! Will Remove Body Oils, Suntan Lotion, And Other Organic Material. Get The Most Out Of Your Pool and Spa Filters Using ULTIMATE Spa Filter Cleaner.
IMPROVES FILTER LIFE: and It Will Improve The Efficiency Of The Filter As Well As Keeping The Water Crystal Clear. A Clean Filter Will Saves You Money.
FAST RINSING: And Leaves No Slimy Residue That Can Cause Foam And Cloudy Water. No More Waiting Hours Or Even Overnight To Get The Filter Clean.
VERSATILE: Whether Your Spa, Hot Tub, Or Pool Filter Needs a Deep Cleaning, Or You Want To Maintain A Healthy pH Level In The Water, ULTIMATE Spa Filter Cleaner Will Keep Your Spa In Tip-Top Condition. Ideal For Commercial And Home Use, This Solution Is Meant For Once-Per-Week use To Keep The Water Perfect.
Homegrown Quality Assurance: From our family to yours, every bottle of Our Products is a testament to American craftsmanship. Proudly made in San Clemente, CA, our products stand as a beacon of quality in eco-conscious household care.

Product information


Top reviews from the United States

  • JC
    5.0 out of 5 stars The best spa filter cleaner ever!
    Reviewed in the United States on July 22, 2024
    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!
  • Chett
    5.0 out of 5 stars Works great for in between deep cleanings
    Reviewed in the United States on November 22, 2024
    I service hot tubs and this is perfect for getting oils, etc. out of the filter. Perfect for Airbnb or other short term rental properties. Works well. Easy and quick. Refill available in bulk.
  • D. Paige
    4.0 out of 5 stars Product good, container it comes in not so much!
    Reviewed in the United States on December 23, 2024
    I finally used this product today and it seems to work as well as another filter cleaner that I had before that I got from my hot tub dealer, but I will say as someone else mentioned the spray bottle container that it comes in is defective. It’s like trying to screw it on and the threads are already stripped because no matter how many times I tried to secure it, it wouldn’t stay on and before I knew how bad it was it ended up falling to the ground and splashing up all over me. Luckily, I was outside but it got all over my skin so I had to go inside and quickly wash it off. So again good product, but it needs to be in a better spray container. I’m going to be switching this over to an empty spray bottle that I know works.
  • Plumber Chris
    5.0 out of 5 stars Works well
    Reviewed in the United States on December 9, 2024
    This was the best filter clean that I have found. Really restored the filter and dirt which is important in Arizona
  • G. Szukala
    5.0 out of 5 stars Works great
    Reviewed in the United States on January 12, 2025
    For some reason I can't find new filters to fit my spa, so I decided to purchase this cleaner..it works great, so glad I found it.
  • Amanda T
    3.0 out of 5 stars Works but LOOK OUT!
    Reviewed in the United States on September 30, 2024
    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.
    Customer image
    Amanda T
    3.0 out of 5 stars
    Works but LOOK OUT!

    Reviewed in the United States on September 30, 2024
    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.
    Images in this review
  • mom
    5.0 out of 5 stars Awesome STUFF CLEANS GREAT
    Reviewed in the United States on January 20, 2025
    Whenever I purchase something I start with reviews. This stuff lives up to the previous reviews. Cleans very well. Just let it sit a couple minutes and comes very clean. Issue with spraying reached out to company directly and they were awesome. Fixed problems immediately. Highly recommend this product if you want to clean your filters
  • dilbeck
    5.0 out of 5 stars worked as advertised
    Reviewed in the United States on November 23, 2024
    Easy to use. Time commitment was reasonable and filters came out clean which has not always been the case with other cleaners. Sprayed on, wait 5 minutes and rinse. I am using ceramic filters.

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