Feature of small water changer: Tiny tube allow small water flow, suitable for small aquariums draining and filling water Easily use: just put the hose in your aquarium tank, squeeze the pump bulb several times and the water will start flowing For smooth flow, ensure water level in the tank higher than the end of discharge hose Feature of large water changer: Use for aquarium draining and filling water Easily use: just put the nozzle and hose in your aquarium tank, squeeze the pump bulb several times and the water will start flowing Safe for fish: filter screen prevent sucking up your fish, excellent for small size fish like betta, dwarf cichlid, guppy, glofish, goldfish etc Specification of small water changer: Recommend tank size:5 gallon Hose length: Approx. 1.7m.(5.5ft) Diameter of water inlet: 0.25 inches Specification of large water changer: Hose length: Approx. 1.6m.(5.25ft) Diameter of water inlet: 1.5 inches Includes: 1pc water changer

Diameter of water inlet: 1.5 inches. Hose length: Approx. 1.6m.(5.25ft). Safe for fish: filter screen prevent sucking up your fish, excellent for small size fish like betta, dwarf cichlid, guppy, glofish, goldfish etc. Easily use: just put the nozzle and hose in your aquarium tank, squeeze the pump bulb several times and the water will start flowing. Use for aquarium draining and filling water.

Best Sellers Rank: See Top 100 in Pet Supplies. : B08CRSHB8J. Manufacturer: AQUANEAT. Date First Available: July 10, 2020. Package Dimensions: 14.53 x 5.24 x 1.89 inches; 3.17 Ounces.