Best Tankless Water Heaters Top of the Line Brands, Amazing Prices

Z-Flex 3 Storm Collar (model: 2SVSLSF03). Used for vertical (through the roof) venting to make a weather seal with the roof flashing for tankless water heater installation. For use with Rheem RTG42, Rheem RTG53, and Bosch 2400E tankless water heaters.

3 x 10 ft Roll Intake Vent Hose Roll Intake Vent Hose (model: 1TLXXXX0310) for tankless water heater installation. For use with Rheem RTG42, Rheem RTG53, and Bosch 2400E tankless water heaters.

Z-Flex 3 Gear Clamps (model: 7HS44XX) for tankless water heater installation. 2 gear clamps are needed for each piece of aluminum flex intake vent. For use with Rheem RTG42, Rheem RTG53, and Bosch 2400E tankless water heaters.