5 Watt UV Submariner - Replacement 3pk Sponges
Mechanical sponge, Carbon bag, Biological sponge
7 Watt UV Submariner - Replacement 3pk Sponges
Replacement Ceramic Rings for JBJ Reaction Canister The Ceramic Rings are the primary biological support for keeping toxic ammonia and nitrite at acceptable levels. Generally, the biological media should not be replaced unless de...