Da-Lite > Product Information > Product Catalog > Monitor Mounts > Advance Ceiling Mounting Pipes   Advance Ceiling Mounting Pipes Product PDF   Four lengths of black 1.5" NPT pipe: 4", 10", 18" and 24". Adjusts distance between ceiling and mounting plate and yoke.   For pricing information, please contact Media Fabricators, Inc. via e-mail at [email protected] or via telephone at 323 937 3344.