For your 44" x 42" windows, the best option is the custom Premium RV Blackout Night Roller Shades. These roller shades feature blackout fabric in black and come with black rails and hardware, ensuring a secure fit and no flapping while driving. The shades use a 1.25" tube with slow rise operation for smooth handling. Each shade is priced at $159.95. For two shades, the total cost is $319.90, plus any applicable tax and shipping. To order, specify your window dimensions (44" width x 42" height) along with the black blackout fabric and black rails. This complete solution offers a durable, custom fit ideal for your RV windows.