The Monument 183B Tee Piece is an essential gas testing accessory designed to connect three pieces of rubber hose together during pressure testing procedures. This precision-engineered tee piece enables convenient simultaneous connection to a U gauge, bellows and nipple cap, streamlining the gas testing process for plumbers and gas engineers. Manufactured by Monument, a trusted name in plumbing and gas fitting tools, this tee piece ensures secure and reliable connections throughout testing operations. The component plays a vital role in creating an effective gas testing setup, allowing tradespeople to conduct accurate pressure tests when commissioning or servicing gas installations. Ideal for use with Monument U gauges during gas tightness testing, this tee piece is suitable for domestic and light commercial applications. The fitting provides a professional solution for connecting testing equipment, helping gas engineers maintain compliance with gas safety regulations. Features and Ben