Replacement part that will be the perfect fit fits any of these dryers: 405-10-BLA, 405-10-CHR, 405-10-COP, 405-10-GRY, 405-10-RED, 405-10-SSB, 405-20WHI. Prevents the motor from packing up. Prevents over heating and maintains the motor. Stocking these will make for easy periodic filter change. The Alpine Industries Willow Hand Dryer Filter Replacement is an essential replacement part to have in stock when you own any of Alpine Industries Willow Hand Dryers. At Alpine Industries, we want to make sure we help you stay prepared for anything. With our Filter Replacements, you can rest assured that your Willow Hand Dryers stay up to bat and in their best condition. With this replacement filter, you can prevent your hand dryer from overheating and from the motor dying out.