The topeak threadlock kit is a replacement head designed for the topeak joeblow pump range offering an upgrade to the standard head that is featured on them with a compact cnc aluminium design the piece threads directly to the valve eliminated the need to change the internals of the pump or for and additional adapters the topeak threadlock kit is compatible with most rubber pump hoses however you will notice the best results when used to joeblow pumps topeak threadlock kit specs