Filter Floss Holder Color:Black upright branching stays open and

upright branching stays open and even

The flower-tipped heads open fully under gentle flow

each cluster forming a low

designed specifically for the Hanna Calcium Checker

reef-safe PETG plastic

Filter Floss Holder Color:Black upright branching stays open andFilter Floss Holder Fits 7 and 4 Filter Sock Openings Simplify your filtration routine with the Treasure Corals Filter Floss Holder. Designed to fit standard 7 or 4 filter sock openings, this holder offers a clean and convenient way to use and replace filter floss without the mess or hassle of traditional socks. Fits standard 7 or 4 filter sock holes Makes replacing filter floss quick and easy Helps maintain water clarity and reduce detritus buildup