'Merchant Coupling, Pipe Fitting Material Malleable Iron, Fitting Schedule/Class Class 150, Pipe Size - Pipe Fitting 2 In., Fitting Connection Type FNPS, Standards UL: FM Approved: ASME B16.3, Max. Pressure 300 psi@150 Degrees F, Saturated Steam Pressure 150 psi @ 350 Degrees F, Temp. Range -20 Degrees to 350 Degrees F'