NIB Eheim Substrat Pro Filter Media Biologically Intensive

Eheim Substrat Pro Filter Media Biologically Intensive (Sintered Pearl-Shaped Glass) 1L. Brand New in box. EHEIM Substrat Pro Biological filter media is specially shaped to create a better water throughflow to provide longer intervals between required maintenance. Its open structure for enhanced water penetration provides better bacterial colonization. Made of highly porous artifiical sintered glass material Unbeatable surface area structure of 1800 sq ft per gallon Can be reused by lightly rinsing with aquarium water every 1 to 3 months and replaced every 3 to 6 months Provides longer intervals between required maintenance For use in all EHEIM filters (Classic, Ecco, Pro 3, Pro 3e)