Solar Cooking
Wapi-before-after

Water Pasteurization Indicators

Robert Nepper is involved with the Rotary Club in a project to manufacture thousands of Water Pasteurization Indicators (WAPIs) for use in projects throughout the world.

See also

Contact

Robert Nepper
North Star Devices Inc.
2251 Shawnee Dr.
N. St. Paul, MN 55109

Tel: +1 (651) 777-5159

nepperr@comcast.net