ALEGI Media Filter Bag Aquarium Extra Fine,Reusable 180 Micron Drawstring Mesh Filter Bags for Very Fine Resins Filter (7.5"*3.6" (3 Pack))

Cumple con el objetivo por el cual lo compre, para usarlo con purigen

Many reviews are for the smaller size so i thought I’d review the larger size. These are bigger than I needed, but the smaller size was too small. It’s OK, I will make it work. They don’t have a clasp for the drawstring, so you will need to wrap it around after pulling the drawstring or find another way to keep it closed. The sewing seems good, and the size of the mesh is good for what i need for my aquarium. These are flat bags, like an envelope, so they crinkle up a bit at the bottom when you wrap around the filter or pump (whatever you are using this for)- so its more like a sock, not like a freezer bag that you can stand up to fill. Thats fine, it’s just like the item description. I think these will hold up to multiple cleanings and wear and tear so I'm happy with the quality and price point.

I bought these specifically for use with fine-grained filter media such as Phosguard, Purigen, and Hypersorb. I have used these for long enough to trust their durability.

I use 2 of these bags in each of my filters ,, really good quality and fits heaps of bio in

These are good quality bags with good stitching. Works with Purigen.