Description Prova “Pan-Multi” Curbless Extension Pack Prova “Pan-Multi” Extension Pack is designed to be installed with Prova Pan-Multi curbless shower pan to create large square or rectangular shower bases. One kit can extend a shower base up to 84” x 84” (213 cm x 213 cm) or any size in between. Use multiple kits to achieve your shower design of choice! Extension pack includes (8) 12″x48″ extensions Prova Pan-Multi extension kit can be used to extend a shower base to any desired size One kit can extend shower base up to 84” x 84” (213 cm x 213 cm) or any size in between Use multiple kits to achieve your shower design of choice! Extensions have an outside thickness of 1/8″ (3.2 mm) to 3/8″ (9.5 mm) and are comprised of lightweight expanded polystyrene PROVA PAN-MULTI sold separately here Premium polymer-modified thinset mortar required for installation. Premixed mortar or mastic are not to be used
