I just installed Pass and Seymour 8301-W HEAVY DUTY HOSPITAL LEVEL SINGLE OUTLET, REAR AND SIDE WIRE, 20A, 125V, WHITE. I've tried installing a one-hole wall plate, but it doesn't fit the holes on the 8301-W. The standard single hole wall plate has 2 3/8" screw holes. However the screw holes on the 8301-W are spaced 2 1/2" or possibly 2 9/16". Does not match the standard wall plate. I contacted Legrand.US and they said they would notify their quality department. No offer to ship plates with the correct 2 3/8" spacing. DO NOT BUY THIS PRODUCT.