CHASE® design provides maximum space for wiring in the box, locking nipple sits flush in the enclosureLocking nipple should be knurled for positive rounding and be special flush design for extra wiring roomPlastic insulated throat, precision cast and machined surfaces permit safer wire pullingCaptive O-ring fits snugly in groove preventing loss and fumbling with partsKnurled inner face of locking nipple provides 360 deg of locking and bites through box wall to ensure groundingLocking nipple has tightening lugs on two planes for easier assembly in hard to reach field conditionsGrounding hubs have a ground screw located within the enclosure providing a Tamper proof ground for deviceLocking nipple design permits replacement of the box without disassembling the installationBuna-N O-ringPlastic insulating sleevesSuitable for use where the system is normally hosed down (NEMA 4) for cleaningSuitable for use in wet locations1/2-14 NPT thread1-3/32 in mounting hole1/4 in W panel