Vertical extraction via caskwidge at JD Wetherspoon | Flickr
CaskWidge Kit – Dual Cask - CaskWidge
How to Assemble the Vertical Cask Ale Extractor and Cask Broacher Tap - YouTube
Y-Thread Ale Extractor Rod System Set – RLBS Ltd - Hand Pumps, Beer Pumps, Fonts, Gas Regulators, Cask Craft Ale, Beer Engines, Spares, Aspirator Breather