Lego mapping includes design ID 30244 for transparent (PC) parts, 51815 and 15561 for Metallic Silver version.
Click on a colored part below to see the Sets and MOCs that use part 2412b Tile Special 1 x 2 Grille with Bottom Groove in that color. You can find an overview of all LEGO Colors here.
If a color is missing, it probably needs to be added to a Set Inventory.
This part has been used by MOCs in the following colors but not officially released.