Specification Brand : Vaphy BulletPoint1 : 【Durable Material】The flashback arrestor is made of pure copper, which is sturdy and durable. BulletPoint2 : 【Working Pressure】The maximum bearing pressure of oxygen check valve is 15bar/210PSI. The maximum bearing pressure of acetylene check valve is 1.5bar/21PSI. BulletPoint3 : 【Specification】The thread specification of air inlet and air outlet of flashback arrestor is 9/16-18 B size. BulletPoint4 : 【Check Valve】The one-way valve design allows the flashback arrestor to guarantee that gas can merely flow in one direction instead of back flow to prevent accidents. BulletPoint5 : 【Note】For installation between the regulator and hoses. The acetylene arrestor in this set can also be used for Propane or Mapp gas. ItemName : VAPHY Oxygen Acetylene Flashback Arrestors Set Regulator End 9/16-18 Threads B Size ItemPackageDimensions_Height : 14.7066 centimeters ItemPackageDimensions_Length : 3.4036 centimeters ItemPackageDimensions_Width : 8.3058 centimeters ItemTypeKeyword : welding-gas-regulators Manufacturer : Vaphy NumberOfBoxes : 1 PartNumber : OX-AC FAS-Blue ProductDescription : Oxygen Acetylene Flashback Arrestors Set Regulator End 9/16-18 Threads B Size ProductSiteLaunchDate : 2023-08-18T03:57:29.225Z Style : B-1 Set SupplierDeclaredDgHzRegulation : not_applicable UnspscCode : 23270000