Overview Reviews Similar Products Product Description An o-ring and gasket are used to prevent water from leaking between the heater and heater body. Location: SBR6B20 Product Videos Custom Field Product Reviews Find Similar Products by Category Recommended Quick view O RING, HEATER $1.62 Add to Cart Quick view HEATER O-RING: 2" TAILPIECE $5.95 Add to Cart SALE Quick view Heater O-Ring, Control Thermistor - 34878 $2.50 $1.75 Add to Cart