Residential 40 Gallon Tall 38,000 BTU Natural Gas Water Heater – Brand: Rheem; Model #: PROG40-38N RH62; Series: Rheem Professional Classic; Features a maintenance-free Guardian System™ with no filter to clean, an EverKleen® system to reduce sediment build-up, and an exclusive Rheemglas® tank lining for superior corrosion resistance. Designed for efficiency with an eco-friendly Low NOx burner, easy ignition, and an enhanced flow brass drain valve. Backed by a 6-year limited tank warranty, this reliable water heater is ideal for homes, apartments, and condos.