The Vector 21 Pillow is a high-quality replacement headrest pillow designed specifically for Marquis Vector 21 hot tubs. Measuring 21” x 4.5”, this pillow provides optimal head support for comfort during spa use, while the two-tone charcoal and gray color adds a sleek, modern touch. This pillow attaches securely to the spa with two holes on the back, making it an easy and reliable replacement for worn or damaged headrests in Marquis Vector 21 hot tubs.