Portable Gas Heater Quick Connect Coupling, Product Type Quick-Connect Gas Couplings, Compatible with Product Type Portable Gas Heaters, Compatible Grainger Part Number 31C943, Compatible Mfr. Model Number 100508, Minimum Temperature -30 Degrees F, Maximum Temperature 450 Degrees F, Pipe Connection Size 1/2 in, Pipe Connection Type (F) NPT, Interchange Type Universal, Locking Type Push-to-Connect, Hose Connection (F) NPT, Coupling Size 1/2 in, Coupler Type Coupler Body, Connection Size 1/2 in