The Husky BJE 007640 Overfill Guard Tank Gauge with 2" NPTF Tank Fitting, Specify Riser Height in Inches has an overfill guard tank sight glass overfill and a large, glass 4-window display with 2" NPT threads (1-1/2" optional). The nickel-plated brass chain is field adjustable to 24" from the top of tank (extended chain available). The BJE 007640 Overfill Guard Tank Gauge with 2" NPTF Tank Fitting, Specify Riser Height in Inches comes with a 1-year limited warranty that protects against defects in materials and workmanship. Husky Corporation produces high-quality nozzles, swivels, Safe-T-Breaks and accessories for service station fuel delivery systems. For more than 60-years, Husky has been on the cutting edge of developing and manufacturing products to ensure consumer and environmental safety at the gas pump. Husky's product line features equipment for vapor recovery, conventional fueling, truck and high volume, farm and commercial and convenience store applications.