Can I simply put 2 single stand media converters and build myself a sub-$100 fiber extension to my network?

Say I have some distance I want to cover, could i just put one of these one each end of the run?

LFC-100-SC20A Fast Ethernet to BiDi WDM SC, 20Km, T:1310/R:1550nm singlemode Single Strand Fiber Media Converter