Grex Fan Spray Cap & Nozzle Kit - 0.7mm (TFK-7) Grex from $67.95 $99.95 Qty. Add to Cart SKU: GRX-TFK-7 This item is currently on backorder but you can still purchase it now and we'll ship as soon as more become available. The Grex 0.7mm Fan Spray Cap and Nozzle Kit fits Grex Airbrush models: Tritium TG, Tritium TS, Genesis XGi and Genesis XSi. Tweet