PoolRx+ Yellow/White 6-Month Swimming Pool & Spa Mineral Algaecide, 1 Tablet Treats 100-400 Gallons

This Pool Rx algicide has worked wonderfully in my hot tub. It has significantly cut down on the amount of chemicals I have to use. It works with with my bromine tablets to keep the hot tub consistently clean and clear. I will purchase again and highly recommend!

We got this so that we could reduce the amount of chlorine needed in the hottub/spa. I used this many years ago with great success, but the original company went out of business and I could no longer find a product like this. So happy to have this product again. The form factor is a bit different from the old product but that product was meant for use in the filter. My portable spa does not have a filter system like that so this works better for my current spa.

This is my 3rd time purchasing this product and it's a must now! I have very little maintenance needs in my hot tub using this, helps water to test almost perfectly every week with very little chemicals needed! One container treats up to 400 gallons but I use 1 in my 500 gallon hot tub and that's all I need!

This is my second year with pool rx and I cannot stress to recommend it enough! Def helps prolong algae from growing and keeps my water sparkling! Also seems as if I'm not using as much chlorine as I typically would

I like how it provides less usage of other chemicals to keep my water crystal clear and leveled works wonderful. Been using it for the past 2 to 3 years. I like the small size I have a small pool works out perfectly and the pricing.

kept our pool crystal clear for about a month woth no other chemicals needed.

The pool stayed so much clearer using this. Even with all the rain.

it only been a .month but so far so clean and clear

This item was out of stock in store ordered online and its 4 times as big says it meant for 100-400 gallons

Not really good for people with well water we already have a lot of metal in water