Easy-to-use hand tight nut and nipple for quick and secure connections Compatible with SCBA Firefighting systems for reliable performance,3" Nipple x 1/4" MNPT Made from high-quality materials for durability and long-lasting use Max pressure up to 5500 PSI for optimal air flow to your air tools Used with a 4,000 PSI nitrogen gauge to convert CF 90cf tank for air tools Upgrade your Air Tool Fittings with our SCBA Firefighting SS-CGA 347 Kits that include a Hand Tight Nut and Nipple. Our reliable and easy-to-use system offers a quick and secure connection to your air tools. Made with high-quality materials, our fittings are durable and built to last. These fittings can handle a maximum pressure of 5500 PSI, ensuring optimal air flow to your air tools. This kit is designed to be used with a 4,000 PSI nitrogen gauge, allowing you to convert your CF 90cf tank for air tools. Upgrade your air tool fittings with our SCBA Firefighting SS-CGA 347 Kits today and experience the ultimate performance and reliability.