Gas Inlet (16L) $17.50 12L Heat Exchanger (JSD24-K) $64.95 AQUAH 10L (2.65 GPM) Outdoor Natural Gas Tankless Water Heater $629.97 Control Box (12L) $29.95 Battery Holder (16L) $9.95 Output Temperature Sensor (16L) $9.95 Control Box (16L) $29.95 16L Heat Exchanger (JSD32-K) $159.00 AQUAH Premium Heat Exchanger A (JSG28-K) $170.00 Outlet Temperature Sensor (Paramount) $25.00 Output Temperature Sensor (Paramount) $19.90 AQUAH Premium Heat Exchanger B (JSG28-K) $85.00 Output Temperature Sensor (Premium) $9.95 Metric BSP G 1/2" Female to NPT 1/2" Male Pipe Coupling Coupler $12.50 AQUAH PREMIUM DIRECT VENT PROPANE GAS TANKLESS WATER HEATER $389.95 AQUAH 6L Portable Outdoor Liquid Propane Tankless Water Heater $89.00 AQUAH 10L (2.65 GPM) Liquid Propane Gas Tankless Water Heater $199.99 AQUAH 16L (4.23 GPM) Propane Gas Tankless Water Heater $299.95 Solenoid (16L) $51.90 On/Off Switch (12L) $8.95 On/Off Switch (16L) $8.95 AQUAH PLUS DIRECT VENT NATURAL GAS TANKLESS GAS WATER HEATER $299.95 Stainless Steel Rain Cap for 12L (3.2 GPM) Tankless Water Heater $32.50 Stainless Steel Rain Cap for 6L (1.6 GPM) Tankless Water Heater $32.50 Stainless Steel Rain Cap for 10L (2.7 GPM) Tankless Water Heater $32.50 Mirco Switch (16L) $11.95 AQUAH PARAMOUNT DIRECT VENT NATURAL GAS TANKLESS WATER HEATER $409.95 Solenoid (12L) $23.95