Brass body and dirt separation chamber - Brass automatic air vent - Brass drain valve on bottom - Glass reinforced nylon internal element - One neodymium rare earth magnet - 150 PSI maximum working pressure - 32 degrees to 250 degrees maximum working temperature range - 100 percent air removal to micro-bubble level - Up to .2 mil particle separation - For use with water and up to 50 percent maximum glycol antifreeze