New in the pack. This GPI cast iron adapter has a 1 inch NPT and is perfect for your automotive tools and supplies needs. You can trust the quality of this product from Great Plains Industries, a reputable brand in the industry. The adapter is suitable for use with other shop equipment and supplies, making it a versatile and valuable addition to your toolkit. Its manufacturer part number, 110534-01, ensures that you are getting the right product for your needs. Invest in this GPI cast iron adapter today.