This specialty tee was used at Thomas Coke Works in Birmingham AL.  Supplied in the kit is the 4 way Tee, three 1/2″ Flange Rings, and three 1/2″ Clean Out Caps. Use your imagination to make an interesting pipe run, or build the Thomas down comer in your own coke plant. Support pipe is 3/32 (Evergreen 223), main Tee accepts 1/2″ tubing (Evergreen 236).