EBL 0021B - Side by side with 18mm gap for slate up to 8mm thick.
EBW 0021B - Side by side with 18mm gap for tiles with max profile 120mm.
EKL 0021E - Side by side with 100mm gap for slate up to 8mm thick.
EKW 0021E - Side by side with 100mm gap for tiles with max profile 120mm.
EKL S0122 - Above/below with 100mm gap for slate up to 8mm thick.
EKW S0122 - Above/below with 100mm gap for tiles with max profile 120mm.