mine is not stainless steel but i can't find a model number...it has hot and cold and room temp water as well as a little frig in the bottom. I teach and someone used my room over the summer ....i can only speculate as to what happened but think the hot was on ans no water in it...but the circular part in the top that keep water from going all over is now warped beyond recognition and water leaks when bottle is put on....we took that part out and checked to see if it was leaking and if the hot and cold were working...didn't leak then and hot and cold are working....now all i need is the round part so i can have water in my room again for tea etc. can you help me with acquiring this part?