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High pressure air pump great for large or multiple aquariumsAdjustable rheostat controls airflow to suit your aquarium needsUse to oxygenate water and improve gas exchangeThe Luft Pump delivers 7.0 psi against water pressure, making it an excellent choice for ponds. Its heavy rubber diaphragm cannot be damaged by back pressure; this means if an airstone has not been maintained, the diaphragm won't be damaged. The adjustable rheostat increases air flow by regulating electricity, not by blocking air flow, allowing more efficient, economical performance. Can be used with multiple valves or T-connectors for multiple devices. Quiet operation. Includes replaceable airline filters and airline clamp. 6-3/4" x 3-1/2" x 3". For aquariums up to 90 gallons.Please click on "More Information" for instructions for replacing rubber diaphragm.

Quiet operation and low heat exchangeRuns in-lineCan be used in fresh or saltwater'Quarium Series Pumps are specificially designed for external use with fresh or saltwater aquariums. Quieter and more efficient operation. UL-Listed.Model 5.5 does not include electrical cord.MDQ recommended for pressure setups (i.e. in-line pressure filters).MDQX recommended for free flow setups (i.e. direct return, wet/drys).ModelMax HeadMax GPHInlet (FPT)Outlet (MPT)Watts2-MDQ-SC14.4 ft5101/2"1/2"963-MDQ-SC18.0 ft7003/4"1/2"903-MDQX-SC14.0 ft1,1001"1"1004-MDQ-SC24.3 ft8501"1/2"1504-MDQX-SC17.0 ft1,3251"1"1455.5-MDQ-SC44.0 ft2,1501"3/4"445Please click on "More Information" for tips on installation and maintenance and flow chart.

Quiet operation and low heat exchangeRuns in-lineCan be used in fresh or saltwater'Quarium Series Pumps are specificially designed for external use with fresh or saltwater aquariums. Quieter and more efficient operation. UL-Listed.Model 5.5 does not include electrical cord.MDQ recommended for pressure setups (i.e. in-line pressure filters).MDQX recommended for free flow setups (i.e. direct return, wet/drys).ModelMax HeadMax GPHInlet (FPT)Outlet (MPT)Watts2-MDQ-SC14.4 ft5101/2"1/2"963-MDQ-SC18.0 ft7003/4"1/2"903-MDQX-SC14.0 ft1,1001"1"1004-MDQ-SC24.3 ft8501"1/2"1504-MDQX-SC17.0 ft1,3251"1"1455.5-MDQ-SC44.0 ft2,1501"3/4"445Please click on "More Information" for tips on installation and maintenance and flow chart.

Quiet operation and low heat exchangeRuns in-lineCan be used in fresh or saltwater'Quarium Series Pumps are specificially designed for external use with fresh or saltwater aquariums. Quieter and more efficient operation. UL-Listed.Model 5.5 does not include electrical cord.MDQ recommended for pressure setups (i.e. in-line pressure filters).MDQX recommended for free flow setups (i.e. direct return, wet/drys).ModelMax HeadMax GPHInlet (FPT)Outlet (MPT)Watts2-MDQ-SC14.4 ft5101/2"1/2"963-MDQ-SC18.0 ft7003/4"1/2"903-MDQX-SC14.0 ft1,1001"1"1004-MDQ-SC24.3 ft8501"1/2"1504-MDQX-SC17.0 ft1,3251"1"1455.5-MDQ-SC44.0 ft2,1501"3/4"445Please click on "More Information" for tips on installation and maintenance and flow chart.

Quiet operation and low heat exchangeRuns in-lineCan be used in fresh or saltwater'Quarium Series Pumps are specificially designed for external use with fresh or saltwater aquariums. Quieter and more efficient operation. UL-Listed.Model 5.5 does not include electrical cord.MDQ recommended for pressure setups (i.e. in-line pressure filters).MDQX recommended for free flow setups (i.e. direct return, wet/drys).ModelMax HeadMax GPHInlet (FPT)Outlet (MPT)Watts2-MDQ-SC14.4 ft5101/2"1/2"963-MDQ-SC18.0 ft7003/4"1/2"903-MDQX-SC14.0 ft1,1001"1"1004-MDQ-SC24.3 ft8501"1/2"1504-MDQX-SC17.0 ft1,3251"1"1455.5-MDQ-SC44.0 ft2,1501"3/4"445Please click on "More Information" for tips on installation and maintenance and flow chart.

Quiet operation and low heat exchangeRuns in-lineCan be used in fresh or saltwater'Quarium Series Pumps are specificially designed for external use with fresh or saltwater aquariums. Quieter and more efficient operation. UL-Listed.Model 5.5 does not include electrical cord.MDQ recommended for pressure setups (i.e. in-line pressure filters).MDQX recommended for free flow setups (i.e. direct return, wet/drys).ModelMax HeadMax GPHInlet (FPT)Outlet (MPT)Watts2-MDQ-SC14.4 ft5101/2"1/2"963-MDQ-SC18.0 ft7003/4"1/2"903-MDQX-SC14.0 ft1,1001"1"1004-MDQ-SC24.3 ft8501"1/2"1504-MDQX-SC17.0 ft1,3251"1"1455.5-MDQ-SC44.0 ft2,1501"3/4"445Please click on "More Information" for tips on installation and maintenance and flow chart.

Quiet operation and low heat exchangeRuns in-lineCan be used in fresh or saltwater'Quarium Series Pumps are specificially designed for external use with fresh or saltwater aquariums. Quieter and more efficient operation. UL-Listed.Model 5.5 does not include electrical cord.MDQ recommended for pressure setups (i.e. in-line pressure filters).MDQX recommended for free flow setups (i.e. direct return, wet/drys).ModelMax HeadMax GPHInlet (FPT)Outlet (MPT)Watts2-MDQ-SC14.4 ft5101/2"1/2"963-MDQ-SC18.0 ft7003/4"1/2"903-MDQX-SC14.0 ft1,1001"1"1004-MDQ-SC24.3 ft8501"1/2"1504-MDQX-SC17.0 ft1,3251"1"1455.5-MDQ-SC44.0 ft2,1501"3/4"445Please click on "More Information" for tips on installation and maintenance and flow chart.

LIMEWOOD IS AN EXTREMELY DURABLE WOOD COMPOSED OF VERY FINE AND STRAIGHT POROUS GRAIN. EACH AIRSTONE IS SPECIALLY CUT TO MAXIMIZE THE NUMBER OF MINUSCULE AIR BUBBLES THAT ARE CONTINUOUSLY BEING RELEASED INTO THE WATER.

LIMEWOOD IS AN EXTREMELY DURABLE WOOD COMPOSED OF VERY FINE AND STRAIGHT POROUS GRAIN. EACH AIRSTONE IS SPECIALLY CUT TO MAXIMIZE THE NUMBER OF MINUSCULE AIR BUBBLES THAT ARE CONTINUOUSLY BEING RELEASED INTO THE WATER.

Customizable water flow system for use on small or large aquariums Create a basic starter system or expand your existing system Assemble parts in multiple ways to enhance aquarium water flow Create custom water flow throughout your aquarium, whether to keep waste from collecting on rock or to target your current-loving reef corals. Includes control valves, spray bars, suction cups, adapters, hydro jet, ball/socket assembly, and all necessary fittings. Adapters designed for 1/2" or 3/4" flexible tubing. Customflo Water System Starter/Expansion Kit allows you to create a basic starter system or expand your existing system. Kit includes: 2 over-wall assemblies, 2valve assemblies, suction screen, coupling bracket, elbow bracket, pipe cap, 2 small pipes with holes, 2 pipe elbows, 2 caps, 4 suction cups, ball/socket assembly, and flexible tubing.