48 Pieces Electrical Outlet Extender Kit, Outlet Spacers Includes 24 Pieces 3 Inch/7cm Non Conductive Rubber Switch and 24 Pieces Extra Long 1-1/2 Inch 6-32 Thread Electrical Outlet Screws, Black - Amazon.com
Daniel Woodhead/Molex 3059DW Super-Safeway Duplex Rubber Receptacle Outlet Box
Buy Oatey 38985, 2" Rubber Tailpiece Metal Washing Machine Outlet Box - Mega Depot
15A Weatherproof Outdoor Power Outlet by Journeyman-Pro 15 Amp 125 Volt NEMA 5-15R Receptacle Kit with Integrated 20" Extension Cord + Waterproof Rubber Cover (GCR1-BLACK) - Walmart.com
Flexible Rubber Grommets - .375'' to .25'' ID Wall Plate Hole Reducer
InSinkErator 4-in 0.875-in OD Inlet x 0.875-in Compression Outlet Rubber Dishwasher Connector in the Appliance Supply Lines & Drain Hoses department at Lowes.com