Alpha Systems 14 X 22 injection molded inner and outerdome skylights utilize the latest in technology to better meet customer needs. These durable, high-impact polypropylene skylights are available in multiple colors and are designed to match your RV's color scheme. Alpha's skylights are the only domes in the industry that are injection molded, making them the highest-quality skylights on the market today. The energy efficient design of Alpha's skylight keeps the air inside while allowing for lighter, brighter interior spaces. The pre-drilled holes make for fast and easy installation. The Alpha skylight features an extremely straight, flat and thick flange which prevents any bowing during installation. These skylights in combination with Alpha's SuperFlex roofing membrane, butyl tapes and sealants virtually eliminates the chance of moisture entering a unit; delivering a complete roofing package. Straight And Flat Flange To Reduce Bowing Injection Molded For High-Quality And Durability 5 X Thicker Flange Than Industry Standard Pre-Drilled Holes For Easy Installation Limited 2 Year Warranty