PREMIUM QUALITY: Durable brass couplers & alloy plugs, precision-engineered for optimal performance in demanding pneumatic applications. Ideal for air compressors, air tools, and airline accessories. HIGH FLOW DESIGN: Maximize airflow with our Type V high flow plug & coupler kit. Ideal for powering air tools in high volume, low pressure (under 300 PSI) applications. Includes 4 male & 4 female plugs, 2 male & 2 female couplers. QUICK & EASY: Push-to-connect technology ensures a secure, airtight seal without leaks. Simply push plug into coupler for instant connection. No need to pull back coupler sleeve. VERSATILE COMPATIBILITY: Universal 1/4" NPT thread size fits most air compressor hoses & accessories. Compatible with industrial & automotive style fittings for home, commercial & industrial use. LIFETIME DURABILITY: Rugged construction & premium materials ensure reliable, leak-free performance. Trusted by pros for 35+ years. Includes thread seal tape for easy installation. Upgrade your workshop with our shop-grade quick-connect air hose fittings built to last from high quality brass & steel. Our Hi-Flo plug and coupler kit includes rugged fittings engineered to deliver superior air flow to power to your pneumatic tools. Great for high volume, low pressure applications such as spray and blow guns, sand blasting, and more pneumatic tools. Includes brass quick connector couplings (4 pcs) and steel air nipples (8 pcs). Also called Type V or V-Style air line fittings.