This is an easy to use heavy duty no drip valve.  Stainless steel.  Meant to be installed on a stainless steel tank.
 
3/4" Straight thread.  You will need to get an fitting for male 3/4" Straight (or NPT works too) to whatever your tank requires (ex. 1" NPT) .  If you wish us to obtain a fitting for your needs, please send us a message as to what your tank needs, and we can source it in for you.  Please allow extra time for this and added cost.