These 304 stainless steel 1 inch hexagonal outer double headed straight through threaded water pipe fittings are designed to join two threaded pipe segments in line with a durable, corrosion resistant construction. Key benefits Corrosion resistant construction: made from 304 stainless steel, offering reliable performance in water applications. Durable and long lasting: robust material suitable for repetitive assembly and disassembly. Easy to install: hexagonal outer body provides a secure grip for tightening or loosening with a wrench. Reliable threaded connections: two ends are threaded for secure, inline coupling of pipe segments. Uninterrupted flow: straight through design ensures a continuous bore for efficient water transfer. Key attributes Material: 304 stainless steel Size: 1 inch nominal Body: hexagonal outer shape for easy wrench engagement Ends: threaded on both sides (double headed) Configuration: straight through coupling Application: water pipe fittings requiring a threaded connection Applications and use cases Connecting two 1 inch threaded pipe segments in residential or commercial water supply lines. Extending irrigation or sprinkler systems where a straight, inline connection is needed. Replacing a damaged section of a water distribution run in commercial buildings while maintaining a straight flow path.