CaddyStack™ – Modular Filter Tower Kit merch Measure your filter sock opening

Measure your filter sock opening

making your reef-keeping hobby even more enjoyable

our FragLoc™ Coral Frag Rack offers unmatched flexibility and security for your coral frags

Fully reef-safe and compatible with mixed sizes (except for the 9x8

Slide-in suction cups ensure the stand stays securely attached

CaddyStack™ – Modular Filter Tower Kit merch Measure your filter sock openingCaddyStack Modular Filter Tower (Filter Sock Replacement Kit) CaddyStack is a fully modular filter sock replacement system designed for reef aquariums that use 2", 2. 75", 4", or 7" filter sock chambers. Unlike traditional filter socks that clog quickly, reduce flow, and require constant washing, CaddyStack replaces socks with a rigid, reusable, stackable filtration tower that gives you total control over mechanical, chemical, and biological