Pricing mentioned is for EA. Requires a minimum buy of 1 piece. Process=Heating; Gas Type=Acetylene, Hydrogen; Tip Size Symbol (Nom)=12; Head Type=Type MFA; Length=17 1/2 in; Applications=Heating; Used on Torch Handle=300 Series; Used on Torch(es)=HD310C Series; Used With=HD310C Series; ; Type=MFA