Boston Thin Cap

Boston Thins are specialized outline caps designed for female valves, making them ideal for original Rustoleum, old stock American Accents, and Painter's Touch cans. These caps work wonders by almost entirely removing the common "valve stutter" found in Rusto products, while providing a smooth, low-pressure experience. They are also compatible with older valve Krylon, Spanish Montana/MTN, and various hardware store or off-brand American cans.