The 1.5" Tri Clamp x 1" NPS Element Adapter is a unique fittings that is specially designed to adapt a 1" NPS heating element to a 1.5" Tri Clamp compatible fitting. This fittings is a one-piece CNC machined adapter with a thread-on cap to cover the element connection. This is an ideal fitting for adding elements to kettles. The back of the element adapter, where the wiring goes is sealed with a 2" tri-clamp cap with a 1" cut out for electric cables to pass through. The 2" extension tube has 2 small drain holes in order to keep wires dry.