4 x Replacement cartridge for the Ocean Free Hydra & Stream.
Cartridge lasts 12 months.
Classic Penn-Plax Action-Air Ornament
This aquarium ornament by Penn Plax is an action skeleton with jug and treasure chest that adds real underwater movement to your tank.
Simple to install, these ornaments will require an appropriately sized air pump and control valve (not included).
12 x 5 x 9cm