Dymax Double Filter Sock Holder 4 inch electronics What does Seachem Reef Nitrogen

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Dymax Double Filter Sock Holder 4 inch electronics What does Seachem Reef NitrogenDymax Double Filter Sock Holder Dymax Double Filter Sock Holder 4 inch is used to securely hold filter socks in place while allowing for easy removal and maintenance in aquarium sumps or filter chambers. The Dymax Filter Sock Holder is the perfect solution for keeping your filter socks securely in place while ensuring easy removal during filtration maintenance. Designed with an open notch in the front this holder offers effortless access to the filter