How much does this cost to the nearest dollar?

6654NR Thermocouple For All Pro Propane Heater 6654, 35916, H08F,
Fits Desa, Reddy, All-Pro, Universal, NR, Sears, Remington Propane Forced Air Heaters Including / SPC-55 / / and many others. Part 6654NR Approximately 12-1/2 long. Replaces Part #'s 6654, 35916, H08F, 16654, Fits Desa, Reddy, All-Pro, Universal, NR, Sears, Remington Propane Forced Air Heaters Including / SPC-55 / / and many others. Dimensions 6.81 x 3.82

Price is $21.00

Price: $20.55