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CPR Bak-Pak 2
Second generation external hang-on the back combination protein skimmer and bio-filter. Improved design features and easy to clean intake tube and an enclosed directional output to reduce splash and bubbles entering your aquarium. Designed for aquariums to 60 gallons but multiple units can be easily hung on large tanks. Complete units with pumps and Bio-Bale media. Plug it in and go. Measures 7 1/2"L x 3"W x 18"H
