Here's a bunch of info...
All these are AquaHot approved.
Many True Value Hardware stores carry the Camco boiler coolant. True Value's stock number is #874845.
Product Name: AMSOIL Propylene Glycol Antifreeze & Engine Coolant
Product Manufacturer: AMSOIL INC
Product Code: ANF
Orders Only Phone Number: 1-800-777-7094
To Locate Nearest Dealer: Visit
www.amsoil.com/dealerinfo2.htm or Call 1-800-777-8491
Product Name: Boiler Antifreeze -100? Antifreeze for Hydronic Heating and Cooling Systems
Product Manufacturer: CAMCO Manufacturing Inc.
Corporate Address: 121 Landmark Drive
Greensboro, NC 27409
Corporate Phone: 1-800-334-2004
Web Address:
www.camco.net
http://www.shoprvparts.com/category.do?no=1177&mfrno=48