6-Year Limited Tank Warranty, 6-Year Parts Warranty, 1-Year Labor Warranty. Table Top-Features a convenient flat porcelain surface at 36” height, providing extra “counter space” wherever installed. All plumbing and electrical connections are made through the back of the water heater. This heater is equipped with a PEX cross-linked polymer dip tube. Blue Diamond® Glass Coating-Provides superior corrosion resistance compared to industry standard glass lining. Enhanced-Flow Brass Drain Valve-Our standard residential water heaters have a solid brass, tamper resistant, enhanced-flow, ball type, drain valve. Approved for Manufactured Housing-All residential electric water heaters are compliant with HUD Standards for mobile home/ manufactured housing. CSA Certified and ASME Rated T&P Relief Valve