External 4+1 stage canister filter with built in UV sterilizer. Filter is capable of handling up to 525 gallons per hour with 4 flexible media trays that allow you to add your media of choice. The HW-304B has a built in 9 Watt UV sterilizer to help kill algae spores and bacteria, promoting crystal clear water. The filter is easy to set up, maintain and clean. It provides mechanical, chemical and biological filtration.

Product Information