Dear Mr. Chen, We are CN Co., ltd, a pressure vessel fabricator in Vietnam. We want to order 1 pc of Emerson Fisher Regulator 1098-ERG with specs as below: P inlet = 10 bar P outlet = 3-5 bar Class 150 Size: 2" or 3" Fluplease send us the quotation. Awaiting for your reply. Thank you and best regards, Nguyen c Tai