SPFT031FRL: -/120/120 (120 minutes) Thickness: 187mm DnT,w+Ctr: 50 A unique composition with a 187mm thickness, SPFT031 uses the small, Speedpanel 51mm panel with less screws and sealant than traditional Speedpanel systems. EDITION 1RELEASE 1(PDF) 1.32MBOct 2019