12 x 8 x 16 Single Score 12 x 8 x 16 Corner Sash 12 x 8 x 16 Reg. 12 x 4 x 16 Half Height 12 x 8 x 16 4 Hour 12 x 8 x 16 SBN 12 x 8 x 16 DBN Same End 12 x 16 x 8 Lintel 12 x 8 x 16 Bond Beam 12 x 8 x 16 Split Face Sash 12 x 8 x 16 Split Face 1 Face   12 x 8 x 16 Split Face Single Score 1 Face          Click on images to enlarge