Marathon water heaters are guaranteed not to leak for as long as the customer owns the home. The heater features a seamless, blow-molded polybutylene tank that is impervious to rust and corrosion, plus multiple layers of filament-wound fiberglass that give the tank unmatched strength, the company says. The Marathon is available in 40-, 50-, 85- and 105-gallon electric models.

Click Here to receive more information on this product.