PROVA UNIVERSAL EXTENSION KIT® is used to extend a shower base to any desired size. This 4 piece set is designed to accommodate the trend for larger and more luxurious shower stalls, steam showers and saunas.
Perforated corner edges are easy to cut and allow versatility in extending show base
Comprised of lightweight extruded polystyrene
One kit will extend either 48" x 48" or 32" x 60"
Use multiple kits for endless possibilities
Size
12”x 36”