LiftMaster 02-403-N4XALD Nema 4 3-Button Push Button, Length: 5.27 in.
NEMA 4X: Adds corrosion resistance to NEMA 4 protection. NEMA 4 / 4X / 12 rated for dust, water, and corrosion resistance. NEMA 4: Sealed against dust, protects from strong water jets. NEMA 12: Limited ingress protection from dust and dripping water.