Aquatic Experts Classic Koi Pond Filter Pad FINE - White Bulk Roll Pond Filter Media, Ultra-Durable Pond Filters for Outdoor Ponds, Reusable Fish Pond Filter Material, USA, (3/4" - 1" x 18" x 72")

It is much less expensive than buying the pre-cut mats and seems to work just as well.

Very good item, have had koi pond for 20 years and this is a very nice final filter in our skimmer and waterfall filter box

Haven’t used yet but much thinker from the last purchased.

I used this filter media in conjunction with the course pads in my outdoor pond and the water is now crystal clear. I am very happy with the results.

Okay, this is quality. The size, durability, and ease of use are my favorite. They’re crazy to clean and have kept my pond clear. Overall great value for the money

Works better than I had thought Rinses easily

For years I've been using a very porous and corse green filter that only block large debris- like koi pellets leaves, etc.. This will stop everything. My koi pond is crystal clear now.

Purchased this filter in summer of 2023, it worked fine. BUT Filter to narrow about 1/4 inch. Once the filter stars clogging up, water flows around filter For that reason I give it 3 stars.

This product worked very well along with the coarse filter. I can see to the bottom of my pond clearly

My large pond (30ft x 10ft x 5ft deep) was out of balance and my large 30-yr-old koi were dying, sometimes two a day. I put this white filter with the black coarse one in place of existing foams and they are doing a great job of clearing the sludge, although I did have to clean them daily to start with. I have also put in pond balancer, so it is not just down to the filters, but they were clearing the water before the balancer was added. The filter pads stand up to pressure washer treatment well and the only downside is the expense. If if keeps working it will be worth it.