The PCN 141612 strip heater is also known as model SSE-1955 with these features: 240 volts, 550 watts, A=19.63 inches, B=18.88 inches, and D=18.13 inches. The overall width of this heater is 1-11/16", and the height with terminals is 15/16". An SSE or SSEM strip heater is 3/8" thick with a rust resisting iron sheath enclosing the ceramic and internal heater coil. There are two #10-32 terminals only on one end of the heater. This bar heater comes standard WITHOUT mounting tabs. This strip heater can be ordered WITH optional slotted mounting tabs (one on each end) with 5/16" by 1/2" slots. This heater with the tabs would have an overall length equal to the "A" dimension. This Chromalox standard strip heater usually ships in 18 or less business days. Click here for the Chromalox Design Guide-Strip-and-Ring-Heaters