" Our USA Lab KF25 vacuum ball valve is a KF25 High Vacuum Flange to adapt to any other KF25 pump or manifold if needed and is made out of 304 stainless steel with a PTFE seat and seals. <span style="font-family: verdana, geneva;
" Our USA Lab KF25 vacuum ball valve is a KF25 High Vacuum Flange to adapt to any other KF25 pump or manifold if needed and is made out of 304 stainless steel with a PTFE seat and seals. <span style="font-family: verdana, geneva;