37 Gallon Aquarium

A convenient filter of natural and synthetic ion-exchange resins for your Rena SmartFilter that selectively remove ammonia, nitrite, and nitrate from freshwater aquariums. Nitra-Zorb also helps during start up by reducing unhealthy ammonia surges while establishing the aquarium's ecosystem. Nitra-Zorb is completely phosphate-free and can be reused after recharging.

Amazon Sales Rank: #259411 in Pet Products Size: 33oz. Brand: Mars Fishcare Model: 110B Number of items: 1 Dimensions: 7.00" h x 1.00" w x 3.00" l, .50 pounds A convenient filter cartridge for your Rena SmartFilter Natural and synthetic ion-exchange resins Selectively removes ammonia, nitrite, and nitrate from freshwater aquariums Reduces unhealthy ammonia surges while establishing the aquarium's ecosystem 3.7 oz. jar