Upgrade your air compressor setup with this handy fittings set. It includes 5 pieces: two 1/2-inch I/M industrial air couplers with male NPT threads, one 1/2-inch I/M air plug with female NPT threads, two I/M industrial air plugs with male NPT threads, plus a roll of sealing tape. Made from galvanized steel, these fittings are corrosion-resistant, durable, and built to last. They feature six locking balls inside each coupler for a secure connection and a sleeve protector to prevent accidental disconnects. Rated for up to 300 PSI and temperatures to 250°F, with a max air flow of 99 SCFM. Perfect for workshops, garages, or any pneumatic tool application. Just remember to use the included tape when threading to ensure a tight seal. A reliable, affordable kit that makes connecting air hoses quick and easy.