12 ft x 15/16 in Armstrong Prelude XL Exposed Tee ID Main Beam - 7300
12 ft x 15/16 in Armstrong Prelude XL Fire Guard Exposed Tee ID Main Beam - 8300
12 ft x 15/16 in Armstrong Environmental Prelude Plus XL Aluminum Exposed Tee LD Main Beam - AL7200WA
12 ft x 15/16 in Armstrong Prelude XL Exposed Tee ID Main Beam - 7300BL
12 ft x 15/16 in Armstrong Prelude XL Exposed Tee HD Main Beam - 7301WA
12 ft x 15/16 in Armstrong Prelude XL Exposed Tee HD Main Beam - 7301BL
12 ft x 15/16 in Armstrong Co-Extruded Clean Room ID Main Beam - EA7900
12 ft x 1 1/2 in Armstrong Prelude Plus XL Stainless Steel 15/16 in Exposed Tee Main Beam - SS7200
12 ft x 1 1/2 in Armstrong Prelude XL 15/16 in for Exterior Applications Main Beam - 7301G90A
12 ft x 1 11/16 in Armstrong Prelude XL 15/16 in Exposed Tee Main Beam / Bronze - 7301BZ
12 ft x 1 11/16 in Armstrong Prelude XL 15/16 in Exposed Tee Main Beam / Charcoal Black - 7301ZB
12 ft x 1 11/16 in Armstrong Prelude XL 15/16 in Exposed Tee Main Beam / Ivory - 7301IV
12 ft x 1 11/16 in Armstrong Prelude XL 15/16 in Exposed Tee Main Beam / Light Grey - 7301LG
12 ft x 1 11/16 in Armstrong Prelude XL 15/16 in Exposed Tee Main Beam / Silver Satin - 7301SA
12 ft x 1 11/16 in Armstrong Prelude XL High Recycled Content 15/16 in Main Beam / White - 7301HRC
12 ft x 15/16 in Armstrong Environmental Prelude Plus XL Exposed Tee Main Beam - AL7200NA
12 ft x 15/16 in Armstrong Prelude Plus XL Fire Guard Exposed Tee Main Beam - HD8201WA
12 ft x 15/16 in Armstrong Prelude XL 360 Painted HD Main Beam - 730136BL
12 ft x 15/16 in Armstrong Prelude XL Exposed Tee HD Main Beam - 7301
12 ft x 15/16 in Armstrong Prelude XL Exposed Tee HD Main Beam - 7301AD
12 ft x 15/16 in Armstrong Prelude XL Exposed Tee HD Slotted Main Beam - 7301TS
12 ft x 15/16 in Armstrong Prelude XL Exposed Tee ID Main Beam - 7300ZW
12 ft x 9/16 in Armstrong Suprafine XL HRC Exposed Tee HD Main Beam - 7501HRC