... finger light, LED lights, Filter 2,different delivery heads 3,adjustable flow controller aquarium pump HL-4501,with finger light, LED lights ... , Filter 2,different delivery heads 3,adjustable flow controller Model HL-450 / HL-450LVFlow rate 450L/H(120G ... outdoor use. 2. Compact design, quiet, safe and long lasting. 3. High efficient-save on operating cost, and energy saving up ...