Autowasher St/Stl Coupler – 1.5″ The Autowasher St/Stl Coupler – 1.5″ is a high-quality, precision-engineered stainless steel connector designed to provide a secure, leak-free connection within autowasher and washdown systems . Built for durability, hygiene, and reliability , this coupler ensures consistent fluid transfer , smooth operation , and long-lasting performance in demanding dairy and food-processing environments. Manufactured from premium-grade stainless steel , the Autowasher St/Stl Coupler – 1.5″ offers outstanding corrosion resistance and exceptional strength , making it ideal for high-pressure cleaning applications . Its polished internal finish promotes efficient flow and easy cleaning , supporting superior hygiene standards across all wash systems. The 1.5-inch coupling design allows for tight, reliable sealing between hoses, fittings, or pipework, reducing the risk of leaks or contamination. Engineered for simple installation and long-term use , this coupler provides secure fitment , minimal maintenance , and dependable performance under continuous operation. When correctly fitted, the Autowasher St/Stl Coupler – 1.5″ helps to: Ensure strong, leak-free system conne