This
Impact Beauty Dish Adapter for Impact Monolights, Bowens, Travelite, Cowboy, Interfit Stellar, JTL, Photoflex, Rime Lite, Westcott Flash Heads features durable aluminum alloy construction and mounts quickly onto the flash head, allowing you to use 16", 20", 22", and 27" Impact Beauty Dishes on your studio flash. It is compatible with Bowens, Calumet Travelite, Cowboy, Impact VC-VS-VSD Monolights, Interfit Stellar, JTL, Photoflex, Rime Lite and Westcott Photo Basics flash heads.