Without its aluminium carrier RP2B (brush only) is recess fixed in a double morticed groove at the stiles of a bullnose timber door. The fine nylon filament engages a suitable concave hinge jamb moulding (by others), providing an excellent unobtrusive seal. Brush strip sealing is recognised as solving draught problems where heavy duty use is required. Location Door bottoms, single, double or sliding. Min/Max Gap Up to 13mm (user determined). Seal Sizes Available in stock lengths. Fixing Method Galvanised steel spine is bowed and inserted in mortise groove to provide a friction fit. Builders adhesive if required. Seal Material Fine dense black nylon filament, UV stabilised. Galvanised steel spine.