The McAlpine USG1WH Untrapped Gully is a plumbing component designed to be used with pumped waste systems. It features a 22mm horizontal plain outlet and includes both a clamp ring and a cover plate.

The gully is untrapped, which means it does not have a water seal that prevents foul odors and gases from escaping back into the room. This makes it unsuitable for use in certain situations, such as where there is a risk of backflow from the drain system.

However, the USG1WH gully is designed specifically for use with pumped waste systems, which typically operate at a higher pressure and are less prone to backflow. In these systems, the pump provides the necessary pressure to push waste water through the drainage system and out of the building.

Overall, the McAlpine USG1WH Untrapped Gully is a specialized plumbing component that is suitable for use in certain applications where a pumped waste system is in use. As always, it's important to consult with a qualified plumbing professional to determine whether this component is appropriate for your specific needs.

・ Available with White Plastic, Polished Stainless Steel or Chrome Plated Brass Cover Plates
・ 22mm Horizontal Plain Outlet for use with pumped waste
・ Sheet floor gully suitable for concrete and suspended timber floors
・ Manufactured in ABS to the highest quality
・ Overall height 44.5mm