Hello Dear Customer! Welcome to hydrion_scientific.

·This listing is for 1 KF-25 Stainless Steel 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. 

·100% Satisfaction guaranteed!  If there are any problems with your order please contact us first...We can work it out!