170 Gallon Per Hour fountain pump is UL safety certified and fish and plant safe. Compatible with 5/16 and ½ in. Tubing sizes.Energy efficient, using 8 watts providing dependable flow for water features requiring up to 30 inches of pumping height. The adjustable maximum pumping height is 43 inches.The 3-prong grounded power cord has a length of 6.5 feet.Angelo Décor Pumps are the most energy efficient pumps on the market, which lowers operating costs while providing an abundant water flow to create a pleasing atmosphere in your garden, deck, or patio.