Pondmaster® Bio-Matrix Media for ProLine™ Pressurized Filters Item:2lb Bio-Matrix Media in Bag (For ProLine™ 4000) The K Plus Advanced Filters

The K Plus Advanced Filters (formerly K1 Micro Bead filters) are a game-changing filtration system that completely re-invents the bead filter

Wide and thick flange for better liner grip

Compare the engineering of Rhino bottom drains to any on the market

Flat sides and spring-loaded clamp allows snug fit against aquarium or reservoir

5" — 75 pcs/box Purify

Pondmaster® Bio-Matrix Media for ProLine™ Pressurized Filters Item:2lb Bio-Matrix Media in Bag (For ProLine™ 4000) The K Plus Advanced FiltersPondmaster Bio Matrix biological media fits all ProLine Pressurized Filters. Bio Matrix Media is available in a media bag to fit the ProLine 1000, 2000, and 4000 filters. Media is also available in bulk.