FAU-10 Style: Torch (part# FAU-10) This item features: -Nickel plated brass. -Soft seat Buna Nitrile O-ring. -316 Stainless Steel flame trap stops flashback. -Reusable flashback arrestor, manual resetting not required. -100pct factory flame and leak tested. -Gas Type: Oxygen, Fuel Gas. -Thread - TPI or Pitch: 9/16 in - 18 UNF. -Size 1: B-Size. -Cutting Cap.: 10 in [Max]. -Price is for 1 Each. Testing and approvals: -UL listed.