Duotight Push In Fitting – 8mm X 1/4in Flare Set The Malt Shop Sale! from 70000 /per Qty. Add to Cart This item is currently on backorder but you can still purchase it now and we'll ship as soon as more become available. Attaches to male flare fitting quick disconnect. Push in side is compatible with 8 mm outer diameter (OD) tubing. SKU:KEG900 1/4 in flare 8mm Ball Lock duotight equipment fitting flare Kegging push in