PVC Waterstops CB CB RGX RGW Code Description Length (mm) Pack (M) 472001 Centre Stop CB 150 150 mm 20 472002 Centre Stop CB 250 250 mm 20 472011 Rear Guard RGX 200 200 mm 15 472012 Rear Guard RGX 250 250 mm 15 472015 Rear Guard RGW 250 250 mm 15