All dryers contain dark gray anodized aluminum castings for better corrosion control, compared to castings without anodizing. Inludes cartridge stabilizer and a rubber anti-vibration damper strip. The stabilizer is an up-grade to the standard AD-9™ dryers & will protect the dryer cartridge from vibrating & pulverizing the desiccant inside the unit. Note: this is inside the unit & cannot be seen from the outside.This will eliminate any warranties caused by vibration.
