PG10X4R-4S Plastic Grille, Fixed Vanes with 1/2" Centers 10" x 4" with 4" Duct Ring on Side by MSI Unit includes grille and mounting frame (MF) Application: Return (Unfiltered) or Supply Air (Fixed Blades) Fixed 30 Degree Blade size is the first number
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.