PB pushbutton box, 3-hole, 22.5 mm hole diameter, 6.97" H x 2.72" W x 3.46" D, Stainless Steel, Pushbutton boxes PB Stainless steel, Stainless steel 1.4301 (AISI 304), Housing and cover: Brushed, grain 240, Wall mounting bracket Cover screws, captive, 69 mm, 177 mm, 88 mm, 2.72 in, 6.97 in, 3.46 in, NEMA 12 | NEMA 13 | NEMA 4X, 8538100000, 1 pc(s), 6.614 lbs, , The NEMA rated PB series pushbutton box enclosure is designed for indoor and outdoor use to house pushbuttons, selector switches, and pilot lights. This enclosure protects equipment from dirt, dust, sprayed water, oil, and coolants.