Check the listing for details. KF-16 NW-16 Aluminum VACUUM CLAMP & SS Viton Centering Ring Set LoCo Science!!. Condition: New. Listed at 10.99 USD. Hello Ebay! Welcome to LoCo Science. This listing is for 1 Stainless KF-16 Aluminum Vacuum Clamp Set with Stainless Steel Centering Ring and Viton O-ring.. Quantity discounts available! KF Vacuum clamps are used to join KF sized flanges together for system design. The item is brand new, unused, and made of SS304 Stainless Steel.We have a complete line of KF-16, KF-25, KF-40 and KF50 Vacuum Fittings for sale. Please check out our Ebay Store to see all our listings!Shipping is via either USPS 1st Class or USPS Priority depending on order weight. Orders placed before 3PM PST will usually ship same day. All other orders will ship the following business day.100% Satisfaction guaranteed! If there are any problems with your order please contact us first...We can work it out!Lost Coast Science is a brick and mortar store located in Humboldt County. Feel free to contact us at any time to ask questions, get advice, or just to say hello. :) Track Page Views With Auctiva's FREE Counter