The Arundel Hansel is a replacement pump head for floor pumps with Schrader-threaded hose fittings. It uses a thumb lock mechanism to secure the head to Presta valves—you press the head onto the valve stem and flip the thumb lever to lock it in place. This creates an airtight seal for pumping without threading anything on. When you're done, flip the lever back and pull the head off. The whole operation takes a couple seconds.

The pump head works with Presta valves only. It attaches to your pump's hose via the existing Schrader fitting, which is the standard threaded connection on most floor pump hoses. If your pump hose has the threaded male fitting where the old pump head screwed on, this will fit. The Hansel head threads onto that same fitting. You're replacing the pump head itself, not the entire hose assembly.

The internal grommet is the rubber seal that contacts the valve stem and prevents air from escaping during pumping. Arundel makes these grommets from NBR neoprene rubber shaped specifically to grip Presta valves. The grommet is replaceable when it wears out—you don't need to buy an entire new pump head when the seal starts leaking. This extends the useful life of the head considerably compared to sealed units where the grommet can't be serviced.... Read More