Browse & Buy UL Standards
Standard 399, Edition 8

Standard for Drinking-Water Coolers

UL Red Line
Standard 399, Edition 8 Edition Date: August 29, 2018
Summary of Topics s0399_8_sum.html


This revision of ANSI/UL 399 is being issued to incorporate the following changes:

Revisions to Controls Requirements

Alternate Sheet Metal Thickness Requirements

Revisions to Include Switch Mode Power Supply Units

Water Coolers Having Two Supply Cords

Nonmetallic Materials Used as Water Pressurized Parts

Clarification to Marking Requirements

Additional Option for Ignition Protection Test

Editorial Corrections

Back to Standard 399, Edition 8

The cost to purchase this Standard varies depending on whether you are ordering a hardcopy, PDF or combination of the two. We also offer two different types of subscriptions: a one year and a three year.

You will be able to choose your purchase options on the following pages.


You have one or more subscriptions that will expire soon.


You have one or more licenses to assign