This versatile kit easily adapts any
Penguin Power head to power sponge filtration in a matter of minutes. It can be
used to create unique waterfall effects and it's perfect for converting to super
efficient reverse flow undergravel filtration.
Kit includes: 6" black prefilter sponge, prefilter core and adapter, 1/2"
straight barbed adapter, reverse flow elbow that fits between 3/4"-1 1/8"
undergravel filter lift tubes, and an air inlet plug.