The McAlpine USG3-R1 is a plumbing fixture that includes an untrapped gully with a 1 1/2" horizontal outlet and a round tile. It is designed to be used as a floor gully in wet room areas or shower areas.

The untrapped gully is made of high-quality materials that are resistant to corrosion and chemical damage, ensuring durability and longevity. It is designed to be installed into a pre-formed floor and features a removable grate for easy access to the waste trap below.

The 1 1/2" horizontal outlet allows for easy connection to standard 1 1/2" pipework, making the McAlpine USG3-R1 suitable for a variety of drainage systems.

The round tile provides a decorative and functional finish to the gully, making it a suitable choice for wet room areas or shower areas with tiled floors.

Overall, the McAlpine USG3-R1 Untrapped Gully with 1 1/2" Horizontal Outlet and Round Tile is a reliable and efficient plumbing fixture that is designed to provide effective drainage for shower and wet room areas. However, it is important to note that the untrapped design of the gully means that odors and gases from the drainage system can enter the room, so proper ventilation is necessary to prevent unpleasant odors and gases from entering the room.