Lightweight and easy to install, the Sesame technologies DMC737D Boeing 737 Drain Mast Cover from SkyGeek is a must-have for your hangar. The cover is made of a lightweight vinyl and Nomex blend in bright yellow to grab your attention and remind you to remove the cover once maintenance operations are complete. The cover is designed to go over the aircraft's drain mast, keeping it free from accidental damage during routine operations. Whenever your jet is grounded, protect it with a DMC737D Drain Mast Cover from SkyGeek. Covers are also water repellent, weather tolerant and flame retardant.