www.pmmag.com/articles/88856-new-heat-trap-design-from-bradford-white
New Heat Trap Design from Bradford White
July 1, 2005

Bradford White has introduced a new and improved heat trap design factory-installed on all residential gas and electric models with 3/4-inch NPT top inlet and outlet water connections. The new style incorporates a small disc that greatly reduces heat loss through the cold-water inlet and hot-water outlet.
Circle 58