Hey trailer builders and RV enthusiasts! This Vintage Technologies horizontal window is exactly what you need for your teardrop trailer, cargo trailer, horse trailer, or camper project. The 30-inch wide by 20-inch tall size is perfect for providing plenty of light and visibility while maintaining that sleek, modern look. The black frame with tinted glass and radius corners gives your trailer that professional, custom appearance that really stands out. The cutout size is 30-1/4\ x 20-1/4\ with a 3-5/16\ corner radius, and the outside measurement is 31-1/4\ x 21-1/4\ - perfect for 3/4 inch wall thickness. It includes a 1/2 vent with screen for airflow, plus weep drain holes on both top and bottom so you can install it on either side of your trailer. The neoprene seal around the inside frame means you don't need additional sealant during installation - it creates a weathertight seal right out of the box. The quality feels solid and durable, built to withstand road vibrations and weather conditions. Whether you're building a custom teardrop, upgrading an existing trailer, or doing repairs on your RV, this window delivers both functionality and style. The tinted glass helps reduce heat and glare while maintaining privacy. Installation is straightforward if you have basic trailer building skills - just cut the opening to the specified dimensions and secure the window in place. Seriously, if you want to add quality windows to your trailer project, this Vintage Technologies model is a great choice that combines good looks with practical features!