Rain Man Tankless New On-Demand Propane LPG Gas Tankless Water Heater & Shower 3.2 GPM. Instant Endless Hot Water. The system also works great on modified water systems such as a 12 volt pump. Manual water temperature controls. Fittings Included. No Electric Hookup. Up to 3.2 Gallons Per Minute. Automatic Electrical Pulse Ignition with No Standing Pilot and No Electric Hookup (Operated by 2 Size-D Batteries, Not Included). Ultra Low Water Pressure Start-up. Minimum Working Water Pressure: 40 psi. Gas Pressure: 2800Pa (0.41 psi). Gas and Water Inlet/Outlet: 1/2". Winter/Summer control. Min/Max Water Flow Adjustment. Manufacturer's Limited Warranty. Gas leak and overheating safety control. Flame failure safety device. Incomplete combustion safety device. Anti-dry combustion safety device. Over water pressure protection device. Auto cutoff protection in case of accident. DISCLAIMER - It is the buyer's responsibility to check out whether the use or operation of this product is in compliance with any applicable local rules, codes, and regulations. Except as provided in the foregoing descriptions, the seller makes no express or implied representations or warranties with respect to the merchantability or fitness of this product for a particular use or purpose.