... heads 3,adjustable flow controller aquarium pump HL-4501,with finger light, LED lights, Filter 2,different delivery heads ... , UL, CUL, SAA Remarks HL-450F = HL-450 + finger light HL-450L = HL-450 + LED Usage1. Fountain 2. ... 5 feet in any dimension.5, Do not use with water above 35C (95F).6, Operate pump completely ... obstructions. Algae build up can be flushed out with a garden hose.6, Check the inlet to ...