Heavy-duty 3 foot galvanized satellite tripod. For use with 2 O.D. mast. Mounts DIRECTVs Slim Line models SL3, SL5, AT9, AU9-S. It can also be used as a support for an off-air VHF/UHF antenna. The PVTP3U is a heavy-duty tripod used to mount satellite antennas or off-air antennas. It is super sturdy, made of 18 gauge steel. The 3 tripod includes a 28 long center universal support pole which is 2.0 O.D. on one end and 1 5/8 O.D. on the other end.