212-7775, Lapp, Lapp SKINDICHT Series Metallic Nickel Plated Brass Cable Gland, PG21 Thread, 15mm min., 21mm max., IP55, Brand Lapp, Thread Size PG21, Maximum Cable Diameter 21mm Lapp SKINDICHT Series Metallic Nickel Plated Brass Cable Gland, PG21 Thread, 15mm min., 21mm max., IP55