GLB71428A Calcium-Hypochlorite Super Charge Shock, 1 lb

Perfect for emergency water purification

Have an above ground pool and this stuff is great to put in the pool for a quick clean. No skin irritations and I feel safe using it with my 4 year old and her friends. Plus, it saves on the water bill and having to dump the water all summer. Great buy when purchasing online from Amazon!

One of the most important items to have around the house when an emergency happens, is the ability to provide drinking/potable water. This product has proven itself time and time again as a great way to do so. I recommend having a couple of these around the house just in case.

If you need to shock that pool or spa, this is the product to use.

What can I say, the item seems made well and seems to function properly. I will get some use out of it and if I have any problems I will update my review.

I purchased this product because the listing stated it was 100% Calcium Hypochlorite. It arrived today ... 65% Calcium Hypochlorite, 35% inert ingredients.Very disappointed!

I bought these for survival reasons to purify water. Works great, I wouldn’t be without them.

Perfect