4 Pack Felt Filter Socks, 200 Micron, 4 Inch Ring by 14 Inch Long, for Freshwater/Saltwater Aquariums, Ponds, Use in Sumps/Overflows

I love them I have some 12" they only last one day I have 4 of them. Maybe the 14 " will last longer. Someone said you can't turn them inside out. YOU CAN TO WASH. WILL BUY AGAIN.

In the past, these have served me well, however, in my most recent order, 3 out of 4 of them leaked water through the plastic ring instead of it all going through the sock. I’m not sure if I just got a bad batch, maybe the deliverer was a little rough with my package, or maybe they started making them with less quality.

Made skimmer overflow for over a week and never equalized, I question what its made of. Material is too thick to turn inside out and clean. Buy differnt socks .

Compre unas medias en otro lugar y se me espelusaron rapido. Estas tienen buena calidad. Compre 10" por error y no tuve problema con intercambiarlas por unas 14"

The sump I have takes 4 inch filter sock but this is a bit bigger and does not fit in to the hole which makes it harder and needs the water level to rise a little higher to be filtered in.

Great sock catches all the junk and excess food keeps water crystal clear

Worked great, only draw back is that it needs cleaned every other day

Great product fast shipping