Question: Where can I get Gauge Guard RPG694 for Tuttnauer Model ?
Answer: You may get the Gauge Guard RPG694 for Tuttnauer Model for Tuttnauer  Sterilizer model HERE

Soft rubber; Color: Blue
Included in: Test Pressure Gauge
Fits: Test Pressure Gauge & Most
2-1/2″ Pressure/Vacuum Gauges
with Bottom or Center Mount Port

Thank you –
~Shlomo Savyon
Your Sterilizer expert