When sourcing pipe fittings for fire protection, HVAC, or industrial piping projects, buyers often encounter GI grooved fittings and red fittings. Although these terms are sometimes used interchangeably in the market, they actually refer to different characteristics of pipe fittings. Understanding the difference helps avoid specification mistakes and ensures the right product is selec... https://archpipes.com/news/company-blogs-en/gi-grooved-fittings-vs-red-fittings/