Double L’s Raydot Replacement Inlets, the RD1200 and RD2400 Raydot Inlets replace the original Raydot Inlets from years ago. They are constructed of a rotomolded single piece housing, which is corrosion resistant. They feature a 1” lid with a seal around the perimeter to minimize condensation, dripping, and inlet freeze-up. Shutoffs included. Insulation stops are not required. Remember, by using these inlets to replace Raydot Inlets, there is no reframing needed. These replacement inlets will fit into the existing rough openings. Less labor and lower cost is hard to beat with these quality replacement inlets.