Our PBC universal projector mounts fit most projectors that weigh less than 40 lbs (18 kg) and mate with standard 1.5 inch NPT. They feature four double-jointed support arms (patent pending) that allow flexible positioning to reach almost any mounting point.- Mates with standard 1.5" NPT- Mounts to traditional ceilings- Cable routing inside pipe- 360° rotation- Comes with ceiling plate and threaded pipe nipple- Includes four Lock-It security leveling barrels for greater protection- OSHPD and DSA approved (OPA-1635-07)- Patent-pending dual joint mounting arms