Model 2 P&GFC WITH SLEEVE our Harj-Lock* male pin plug and female conneclor cosl '/3 less than the locking blade type . .. . . . and they are the safest in the theatrical industry. Compare other plugs and connectors against our exclusive self locking ("HARJ-LOCK") pin plug and female sleeve connector. Since our system is made specifically for (and used by) the theatrical industry you'll find it safer ... while it costs less. HARJ-LOCK MALE Patented The Harj-Lock meets all OSHA requirements. * NOTE Because of specific OSHA requirements, where change has to be from a 2 pole to a 3 pole wiring system, the immediate use of the Harj-Lock system is recommended. DON7 TAKE CHANCES . .. USE THE HARJ·LOCK SYSTEM! uc: UL Listed OSHA Acceptable