Item #W005-212 3/4" Male NPT Inline Aquastat For control of system fan heaters. It will keep all fans in the system off until the system reaches 110 degrees F.
These warnings are not an indication that these products are violating any safety standards or regulations.
However, as our products might be sold in the state of California, we are legally obliged to inform customers about the potential presence of these chemicals in our products.