Marineland Maxi-Jet Pro 600 300 filter cartridge 4" Comes complete with media

4" Comes complete with media and valves

Utilize the indicator light to safely and conveniently check your bulb's effectiveness without opening the unit

Size: 2"x2"x3

one chemical and two biological stages-for outstanding results

Marineland Maxi-Jet Pro 600 300 filter cartridge 4" Comes complete with mediaMaxi Jet Multi Use Water Pumps are three pumps in one: power head, utility pump, and now featuring a circulation pump option. Still the best power head for powering undergravel filters and running wave maker timers, as well as for running small fountains, calcium reactors and skimmers. The Maxi Jet also contains an in box conversion kit, which can turn the power head into a prop style circulation pump for ultimate water movement inside the aquarium