Mainstream Engineering - 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.
Color change indicates pass/fail
Tests for inorganic acids to the ARI-700 limit of 1ppm
Works with all refrigerants & oils
Meets EPA venting regulations
Unique patented disposable design
US Patents #6,514,765 & #6,825,040
Warning: this product contains a chemical known to the State of California to cause cancer. P65Warnings.ca.gov