The no.15 o-ring joint connections at each end

Three or four ports with easy action 0 - 10 mm threaded stopcocks and standard taper joints or no.15 o-ring joint connections off each port. The distance between ports is 100 mm, which will accept 250 mL flasks or smaller. Requires all stainless steel, pinch type screw locking clamp 89060-256 (for no.15 o-ring joint).