This rocker switch will fit a 15/16" x 1 1/8" hole and uses 16 amps. If you can get me the manufacturer, model number and serial number of your equipment I can try to locate the correct rocker switch. Please ask another question or contact our customer service team at 1.888.388.6372 for immediate assistance.
To replace the rocker switch for your 3DWSA4H double warmer you'll want Star part #2E-V5884. We do not currently stock this part, but we special order for customers on a daily basis. Please give a member of our Tundra Restaurant Supply team a call at 1-888-388-6372, and we'll be happy to get you the part you need.