• One test per kit Insert into the valve core while system is operating to allow vapor to flow through the kit after two seconds kit is removed, color change on test paper indicates acid level Unique patented disposable design

The QwikCheck Acid Test detects inorganic acid in 2-seconds down to 1 part per million. Fast, accurate, and easy to use, QwikCheck provides an early warning of acid problems. The Yellow to Red color change allows you to easily and clearly communicate the need for action to the equipment owner.