Brass Flare Tee Union (UNF) The bras flare tee union from the house of Imperial brass component comes with spare units of Flare Forged Nuts, Flare Union, Flare Connectors, Flare Tee, Flare Elbow, and Flare Cap. We make use of BS-249 brass inputs, for a perfect mold. Additionally, we offer multi-step reduction system and other offers on the customization of our product through order.