HQRP - 50 pcs 1.5 in Bio Balls Aquarium Filter Media - Mesh Bag Zipper for HOB, Canister, Pond Filters

Upgrade biological filtration with this set of 50 large 1.5 in bio balls designed to clarify water naturally by supporting beneficial bacteria growth, promoting gas exchange, and increasing dissolved oxygen levels. Each spherical bio ball features precisely placed spines to dramatically increase surface area while still packing tightly in many filter chambers without sacrificing performance. Made from high density polyethylene in black, these bio balls can be used loose or kept together in the included mesh bag with plastic zipper for easier loading, removal, and rinsing. Compatible with HOB filters, external canister filters, pressurized filters, and filtration setups in aquariums, ponds, koi ponds, aquaponic systems, waterfalls, and fountains in fresh or salt water. Mesh bag size: 11.8 in x 8 in; package includes 50 bio balls and 1 zippered mesh bag. Disclaimer: This is not an Original Equipment Manufacturer (OEM) product, HQRP branded product is a replacement. All brand names and logos are registered trademarks of their respective owners. Any use of the brand names or model designations for this product are made solely for purposes of demonstrating compatibility.