my final rubber gasket I had for my 35+yr old Silca Track pump finally gave up the ghost about a yr ago. And finding replacements for that head seems impossible.
So I took a chance on a 'replacement' for the entire hose and head assembly and got the replacement assembly from nashbar - very inexpensive. It has separate locking (opposite facing) connectors for Schrader and Presta, and after a year of solid use of both heads, I gotta say its pretty good.
I like the separate connectors, since each needs only to work with its head type. Thumbs up for this pump head. Have used both heads a lot, and they both work reliably well.
It comes (and is shown) on the nashbar white floor pump - reg $29.99, and now on sale for $16.99.
Can;t say anything about the rest of that pump, but the head assembly works great.