Hailea hx-4500 2500lph water pump.

Hailea  Liquid pumps suitable for hydroponics, ponds, tanks and general use, that can work in low water. These versatile little pumps have fully adjustable low rate regulators (not HX-2500) and have the ability to work in low water conditions. HX-2500 and HX-4500 also come with the added bonus of an oxygen mixing unit as standard.

Features
ABS case and high quality stainless steel shaft, suitable for fresh and sea water and ideal for use with nutrient salts.
- Inbuilt flow regulator to control flow easily
- Ideal for pumping nutrients in NFT / Flood & Drain applications
- Mounted on suction cups for secure location
- These pumps are designed for continuous use
- HX-2500 and HX-4500 have oxygen mixing function

Air MIx System
The mixing accessory which comes with HX-2500 and the HX-4500 models allows large quantities of air tomixed with the water while the pump is in use, considerably increasing the concentration of Oxygen (O2:

These versatile little pumps have fully adjustable flow rate regulators (not HX-2500) and have the ability to work in low water level conditions. HX2500 and HX-4500 models also come with oxygen intakes as standard.
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The exact flow rates of these pumps is shown in the options above. With regards fittings the following pumps require the following fittings so you may need a reducer:

• HX-800 = 13mm flexible pipe
• HX1500 = 10mm, 13mm supply pipe or 13mm flexible pipe
• HX2500 = 13mm supply or flexible pipe
• HX4500 = 19mm supply or flexible pipe