Yes - although I would test it in a glass to see how long it will keep your particular pattern of hook up for.
The 13 mm needs a fair bit of putty to hold it down, I even had to trim the pop ups down. The 11 mm will keep a hinge with a size 5 Chodda up for 48 hrs easily, and that's with putty too.
They're be far the most buoyant pop ups on the market buddy.