A.O. Smith GCR-40 ProMax Plus High Efficiency Gas Water Heater, 40 gal
Brand: A. O. Smith


Blue Diamond glass coating provides superior corrosion resistance to industry-standard glass lining
Self-powered electronic gas valve uses thermopile to generate power needed to operate the electronic gas control without requiring external power
Internal microprocessor provides enhanced operating parameters and tighter differentials for precise sensing and faster heating response
Dynaclean diffuser dip tube helps reduce lime and sediment buildup, maximizes hot water output; made from long-lasting PEX cross-linked polymer
Meets all current regulations set forth by the National Appliance Energy Conservation Act (NAECA)