Everybody loves the VapCap. But do you sometimes wish the body was made of glass? The Hula Stem is just that: the large (75 mm) Hula Stem can be combined with a DynaVap stainless steel or titanium tip. The high-quality glass makes for a very pure VapCap experience. Indentations on the inside of the tube add an extra surface area which the vapour has to pass. The longer path means even cooler vapour without having to use a drop of water.