AQUAH 10L (2.65 GPM) Natural Gas Tankless Water Heater $399.90 AQUAH PREMIUM DIRECT VENT NATURAL GAS TANKLESS WATER HEATER $1,169.85 AQUAH 10L (2.65 GPM) Outdoor Natural Gas Tankless Water Heater $419.98 Stainless Steel Rain Cap for 10L (2.7 GPM) Tankless Water Heater $32.50 90* Co-Axial Stainless Steel Direct Vent Pipe Elbow $34.95 AQUAH PARAMOUNT DIRECT VENT PROPANE GAS TANKLESS WATER HEATER $409.95 Metric BSP G 1/2" Female to NPT 1/2" Male Pipe Coupling Coupler $12.50 Stainless Steel Rain Cap for 6L (1.6 GPM) Tankless Water Heater $32.50 AQUAH 10L (2.65 GPM) Liquid Propane Gas Tankless Water Heater $199.99 AQUAH 12L (3.2 GPM) Natural Gas Tankless Water Heater $439.98