It pick up all the dog hair and pollen that would end up in the cartridge fiter.

Thickest sock I've used. They have very good elastic tops.

they are great

Socks are a God send if you have a lot of trees around. Saves a ton of stuff from going into the filter medium.

Nice quality

amazing product a must have to reduce cleaning your filter

Can't believe how much crud these pick up. Easy to clean, like Nicole said, check often as they fill up quickly, especially in Spring.

These are absolutely fabulous!! We couldn't be without them. Especially right now with all the pollen in the air. It just traps everything that goes into the skimmer basket. Must Have!!! And at 5.99 ...huge savings. We paid 14.99 at the hardware store.

Great product. Have a cartridge filter and this stops tons of debris from going into it. I didn't have to clean the cartridges all season. Just check the skimmer regularly it fills up quick.