Specifications include, but are not limited to: Texas Parks and Wildlife Department (TPWD) is soliciting bids for twenty six (26), Two-Horsepower, three-phase Paddlewheel Aerators. Example Make/Model: Pentair Paddlewheel Aerators model # PW23 OR Hung Star Paddlewheel Aerators model #HS-A240 OR TPWD approved equivalent. SPECIFICATIONS SHALL MEET OR EXCEED THE FOLLOWING: 3.1. Example: (26) Pentair Paddlewheel Aerators model # PW23 or (26) Hung Star Paddlewheel Aerators model # HS-A240 or TPWD approve equivalent. 3.1.1.Motor 3.1.1.1. Two-horse power, three-phase 3.1.1.2. 230/460 volts 3.1.1.3. 60 Hertz 3.1.1.4. High efficiency totally enclosed fan cooled (TEFC) design 3.1.1.5. Stainless steel fan cover and conduit box 3.1.1.6. Meets European Conformity (CE) standards 3.1.2.Motor Cover 3.1.2.1. Made of high density, water-proof polyethylene 3.1.2.2. Impact and high wind resistant 3.1.3.Gear Reducer 3.1.3.1. High Quality Grade Aluminum bronze, nickel aluminum bronze (ALBC3) wheel gear and S45C carbon steel worm shaft 3.1.3.2. Threads of worm shaft are ground after heat treatment, providing high efficiency and longer life 3.1.3.3. Built under strict quality control and inspection 3.1.4.Frame, Drive Shaft & Hardware 3.1.4.1. 304 Stainless steel to provide rust resistance and longer life 3.1.5.Paddle Wheels 3.1.5.1. Four sets of eight blade, fiber-reinforced nylon 3.1.5.2. Able to be replaced by individual blade 3.1.6.Floats 3.1.6.1. One-piece, blow molded, leak proof polyethylene floats