Intermatic P1103FE 24-Hour DPST Electronic Time Switch Beige finish All plastic NEMA 3R rated for Indoor/Outdoor installation Can be used with the Intermatic P1000 and P7000 Series 93/8-Inch (23.9 cm) Height by51/2-Inch (14.0 cm) Width by 35/8-Inch (9.2 cm) Diameter Combination 1/2-Inch - 3/4-Inch nominal knockouts, 1 on back and each side of enclosure, and 2 on bottom