4 ft x 15/16 in Armstrong Co-Extruded Clean Room Cross Tee - EA7940
2 ft x 15/16 in Armstrong Co-Extruded Clean Room Cross Tee - EA7920
2 ft x 1 1/2 in Armstrong Co-Extruded Clean Room Cross Tee - EA7927
4 ft x 1 1/2 in Armstrong Co-Extruded Clean Room Cross Tee - EA7947