Diaphragm (10L, Silicon Gel) $37.50 Output Temperature Sensor (10L) $19.90 AC Adapter (10L) $21.50 Gas Inlet (10L) $29.00 Water Inlet (10L) $9.95 AQUAH Premium Heat Exchanger B (JSG28-K) $170.00 On/Off Switch (6L) $17.90 AQUAH 12L (3.2 GPM) Natural Gas Tankless Water Heater $439.98 Control Box (Plus) *** $52.25 Water Pressure Relief Valve $21.90 AQUAH Premium Heat Exchanger A (JSG28-K) $170.00 AQUAH PREMIUM DIRECT VENT NATURAL GAS TANKLESS WATER HEATER $1,169.85 Output Temperature Sensor (6L) $19.90 AQE24 Heating Element $270.00 Control Box (6L Outdoor) $39.90 Triacs (AQS27) $58.00 Blower Switch (Plus) $18.50 Battery Holder (12L) $19.90 Fan Motor (Plus) $57.00 Gas Inlet/Valve (6L Outdoor) $29.00 Outlet Temperature Sensor (Paramount) $25.00 Control Board (AQS24) $44.00 Output Temperature Sensor (Premium) $9.95 6L Heat Exchanger (outdoor) $58.00 Triac B (AQS24) $52.00 Water Pressure Relief Valve $21.90 LED Display (Premium) $45.00 Solenoid (12L) $47.90 Water Flow Sensor (AQS24) $55.00 12L Heat Exchanger (JSD24-K) $129.90 AQUAH 10L (2.65 GPM) Natural Gas Tankless Water Heater $399.90 Water Oulet (AQS24) $30.00 Solenoid (6L) $47.90 Water Flow Sensor (Plus) $26.78 AQUAH 16L (4.23 GPM) Natural Gas Tankless Water Heater $599.90 Outlet Temperature Sensor $25.00 Water Pressure Relief Valve/Drain Plug (12L) $21.90 Output Temperature Sensor (Paramount) $19.90 AQUAH 16L Propane Gas Tankless Water Heater Dented in Shipping *** $559.98 Outlet Temperature Sensor (AQE18) $25.00 Water Flow Sensor (AQE18) *** $29.50 Water Pressure Relief Valve $21.90 Control Board (AQE18) $22.00 Triac A (AQE18) $58.00 Metric BSP G 1/2" Female to NPT 1/2" Male Pipe Coupling Coupler $12.50 Stainless Steel Rain Cap for 10L (2.7 GPM) Tankless Water Heater $32.50 AQUAH 24 KW Electric Tankless Water Heater $279.75 Stainless Steel Rain Cap for 6L (1.6 GPM) Tankless Water Heater $65.00 AQUAH 27 KW Electric Tankless Water Heater $299.95 90* Co-Axial Stainless Steel Direct Vent Pipe Elbow $69.90 Stainless Steel Rain Cap for 12L (3.2 GPM) Tankless Water Heater $65.00 0.5 M Stainless Steel Direct Vent Pipe Extension *** $77.90 1 M Stainless Steel Direct Vent Pipe Extension $143.50 Triac B (AQE18) $52.00 Stainless Steel Direct Vent Pipe with Elbow *** $90.00 Water Oulet (AQE18) $30.00 AQE18 Heating Element $210.00 AQUAH 12L (3.2 GPM) Outdoor Propane Gas Tankless Water He $229.00 AQUAH 6L Portable Outdoor Liquid Propane Tankless Water Heater $89.00 Heat Exchanger (Plus) $64.75 Output Temperature Sensor (Plus) $9.95