Question: Where can I get Tuttnauer Model TUK049 Knob( for timer and muti-purpose valve)?
Answer: You may get the Tuttnauer Model TUK049 Knob( for timer and muti-purpose valve) for Tuttnauer  Sterilizer model HERE

Details
Fits: Front Panel Controls for
Timer and Multi-Purpose Valve (1/4″
dia. ‘D’ Flat Shaft)

VIDEO

Thank you –
~Shlomo Savyon
1-800-762-1586
Your Sterilizer expert