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

I recently tried the Black Diamond Ultimate Spa Cleaner, it’s a total game-changer for spa maintenance. The application couldn’t be easier.What really impressed me were the results. After one use, the amount of buildup and gunk it removed was shocking. My spa looked incredibly clean, smelled fresh, and felt like new again. The water clarity noticeably improved too.If you’re looking for a powerful yet easy-to-use spa cleaner, I highly recommend Black Diamond Ultimate Spa Cleaner. The results are truly spectacular!

Great Cleaner for pool filters. Spray it on, wait 10 mins, wash with a garden hose that has a nozzle.

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.

I let it soak for a while. It did all the scrubbing for me

This is an excellent product, clean filters very well

Cleaner was great , but sprayer kept popping off the bottle. I would have given 5 stars except for the defective sprayer.

This product is on our Subscribe & Save list, as we use it regularly and it works well.

Worked well.