What Size Nut Is On A Hot Water Heater Element?
What Size Nut Is On A Hot Water Heater Element? and 1-7/8 in. Hex . What size is a screw in water heater element? It is 1′′ NPS. As stated by others, NPT or National Pipe Thread is tapered. NPS is National Pipe Straight, or in other words, not tapered. If we are talking about