• Shows results in 24 hours
  • Available in a 1lb size
  • Sold in a 6 pack

I love being able to buy online and cheaper than in the store. I use hth products and couldn’t be happier with their products. Never have any cloudiness, or algae just a clean clear pool in hot Atlanta weather which says a lot.

Great price compared to other stores near me! I will need to order this one more time this season though.

Ugh, found cheaper after I ordered. Not by much but it was worth the fast ship and quality project! Probably saved money because I didn’t have to leave the house and buy other unnecessary things!

People dissolve this first in a bucket of water before you add it to your pool..this keeps from staining or bleaching your liner out. I love this product!!! This is all we use and our pool stays crystal clear all year long. Even when we close it!! We just opened from last year and it looks just like it did when we closed it!!! GREAT PRODUCT!!!!

This is a great product. I use half a bag once a week in my pool and it stays crystal clear. It should get me through the whole summer.

Fantastic pool shock! Doesn't seem as caustic (from the smell) as the cheap stuff, and sank right down rather than floating on the surface. I shock our pool weekly, and this did the trick!

I shocked my (green) pool five times with clorox shock over the course of a week and a half with very little results. After one treatment with hth super my pool cleared up completely within 12 hours. Highly recommend for green algae!

i've tried buying the store brand stuff before to save a buck here and there, but they dont mix well with water and ended up bleaching the bottom of my pool. this one mixes well every time. gets the pool clean.

This works and works fast. Just remember, if you are using it to kill beginning algae you'll need to manually vacuum out to waste afterward, as the filter will just push the dead algae (which looks a little like sand) right back into the pool and create a cloudy pool from the particles, and then you'll need a clarifier. The only problem that I see here is overpricing. I have purchased this here before when the price was good, however, currently it's set at more than twice what I paid at the local big box store recently for the same 6 pack (under $20), so you might want to compare pricing.

Have used alternative pool water disinfectants in my gunite pool, none work as well as HTH products!