Beam Central Vacuum System Add-On Installation Kit for 1 Inlet Contains: 2 Nail Guards, Metal - 1 Wall/Stud Mounting Bracket, Plastic - 1 Plaster Guard, Plastic - 1 Dual 90 Degree Elbow, plastic - 1 Floor Mounting Adapter, Plastic - 2 45 Degree Elbows, Plastic - 4 90 Degree Sweep Elbows, Plastic - 1 90 Degree Sweep Tee, Plastic - 2 Stop Couplers, Plastic - 2 Hanger Clamps, Plastic - 25 Ft. Low-Volt Wire - 2 Wire Nuts