Product Name: Adapter Kf-40 to 1.5 Inch, Kf-50 to 2inch Flange Vacuum Fittings, with O-Ring Groove Model NO.: EXVF-1020 Head Type: Round Surface Treatment: Finish Connection: Vacuum Material: Stainless Steel Standard: Vacuum Fitting Trademark: NO Transport Package: Carton/Small Bag Specification: KF10-KF50 Origin: Wenzhou, China HS Code: 730729 Product Description Stainless Steel Flange Adapter Vacuum FittingsPackaging &DeliveryPackaging Details: standard export packaging (as per customer's specification)Delivery Details: Within 7-10 daysProduct Desciption1 Size: KF 40 -KF 502. Material: AISI304These vacuum components and fittings are commonly used to build foreline vacuum plumbing and process systems. They are often called quick flange fittings because they are quick to assemble.please inform us if you have any futher questionCONTACTOR : IVOR SOMOBILE PHONE :86-13676512778SkypeWeiChat: 86-13676512778