In addition to your Beam power unit, hose and attachments, very few other materials are required for your system. The materials, available from your Beam dealer, include:
Inlet valves
Where you connect your vacuum hose to the piping concealed in your walls (the average home needs three inlets).
PVC piping
Carries dust and debris to the dirt collection canister.
Elbows, joints
Used to connect piping.
Low-voltage wiring
Turns Beam power unit on when vacuum hose is plugged into inlet valve.