Water Pressure Relief Valve/Drain Plug (10L) $21.90 Heat Exchanger (Plus) $64.75 Water Flow Sensor (AQS24) $27.50 Mirco Switch (6L) $17.95 AQUAH 27 KW Electric Tankless Water Heater $299.95 10L Heat Exchanger (JSD20-K) $59.87 Solenoid (6L) $23.95 On/Off Switch (6L Outdoor) $8.95 Water Flow Sensor (AQE12) $24.95 LED Display (Plus) $22.50 Water Flow Sensor/Inlet Assembly $37.50 On/Off Switch (10L) $8.95 Outlet Temperature Sensor (Plus) $12.50 Output Temperature Sensor (Paramount) $9.95 Output Temperature Sensor (10L) $9.95 Outlet Temperature Sensor (Paramount) $12.50 Gas Inlet/Valve (6L Outdoor) $14.50 Triac A (AQE12) $27.00 Outlet Temperature Sensor (AQE12) $12.50 Water Pressure Relief Valve $10.95 6L Heat Exchanger (JSD12-K) $35.00 AQE12 Heating Element $79.50 On/Off Switch (6L) $8.95 Water Valve Assembly (10L) $39.95 AQUAH 6L Portable Outdoor Liquid Propane Tankless Water Heater $89.00 Water Inlet (6L) $9.95 Gas Inlet (10L) $14.50 Battery Holder (6L) $9.50 Control Box (6L Outdoor) $19.95 Gas Inlet (6L) $14.50 AQUAH 12L (3.2 GPM) Outdoor Propane Gas Tankless Water He $229.00 AQUAH 12L (3.2 GPM) Liquid Propane Gas Tankless Water Heater $219.00 Water Pressure Relief Valve $10.95 Battery Holder (10L) $9.95 Water Oulet (AQE18) $15.00 AQUAH PARAMOUNT DIRECT VENT PROPANE GAS TANKLESS WATER HEATER $409.95 Control Box (10L) $29.95 AC Adapter (10L) $10.75 Output Temperature Sensor (6L) $9.95 AQUAH 10L (2.65 GPM) Outdoor Propane Gas Tankless Water Heater $209.99 AQUAH PREMIUM DIRECT VENT PROPANE GAS TANKLESS WATER HEATER $389.95 Blower Switch (Plus) $18.50 Control Board (AQE12) $24.95 Output Temperature Sensor (Plus) $9.95 6L Heat Exchanger (outdoor) $29.00