Question: Where can I get Tuttnauer Model RPF644 HEPA filter?
Answer: You may get the  Tuttnauer Model RPF644 HEPA filter for Tuttnauer  Sterilizer model HERE

Details
0.30 Micron
Size: 2.57″ dia. x 1.93″/2.24″ lg. body
Accommodates tubing with ID of 1/4″-3/8″
For use with air or gasses only
Includes: (1 piece) Cable Tie (12″ Black)
Also available: Cable Tie Tool
Fits: Water Reservoir/Filter Cover

VIDEO

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