17.7"x 17.7" Large Pump Barrier Bag, Pond Pump Filter Bag, Black Media, Nylon Mesh Bag, Swimming Pool Filters(Black)

I’ve been very happy with “Pond Guy” products and they have good customer service, and if you buy something from them you intermittently get an old-fashioned “catalogue” of their other products as a continuing bonus. This particular filter bag works great. You should buy a size larger than you need since appearance doesn’t matter underwater. I had to return the first one I purchased since it was too small to fully enclose my underwater pump (my fault, not the product) so I exchanged it for a larger one with no difficulty. That has been working underwater for about six months now with no complaints. I have since purchased other “Pond Guy” products and have been happy with their brand on all occasions.

Strong material, right size holes and easy to zip it up

I'm using this to surround my canister intake, because a pre-filter sponge was too fine and kept clogging.I used a plastic Lacy cube ornament as a support structure, and the hack works pretty well, except it keeps coming loose at the drawstring, despite tying knots. I'm concerned that fry will get in there and get sucked up by the filter.For use inside a filter (the intended use for this product), a plastic zipper would work better than a drawstring, albeit a bit more expensive. For this little hack, plastic snaps would be handy, or perhaps velcro. I think velcro would work for holding filter media, too.One thing I love is that the material naturally grows biofilm, which increases filtration, and my live barriers love to graze.

Quality for the money

We turn it off and leave it in the pond all winter. So far, it is working well this spring. Very happy with this purchase.

Very Strong !

It a bag with wholes

Pump cover works grate for my pound pump spray water falls