9000396015 | Kit Shtr 5500 Best | AO SMITH

AO Smith Kit Shtr 5500 Best: Kit Shtr 5500 Best is a replacement part for AO Smith Water Heaters. This kit includes a sacrificial anode rod, a gasket, and a drain valve. The sacrificial anode rod is made of magnesium and is designed to corrode instead of the steel tank, extending the life of the water heater. The gasket is made of rubber and is used to seal the drain valve. The drain valve is used to drain the water from the water heater for maintenance or repairs.