The Underground uPVC Bottle Gully Riser is a practical and durable extension component designed to adjust the height of bottle gully systems in below-ground surface water drainage networks. Manufactured from robust, high-impact unplasticized polyvinyl chloride, this riser is engineered to withstand outdoor weathering, ground movement, and the pressure of surrounding backfill. It provides a reliable method for matching the gully grating or hopper to finished ground levels during landscaping or paving projects.
 
Featuring a straightforward push-fit or slot-in design, the riser integrates seamlessly between the bottle gully body and the top hopper or grating. This adjustability eliminates the need for complex masonry work or awkward pipe cutting on site, saving valuable installation time. Its sturdy walls maintain structural stability under foot traffic and general surface loads, ensuring the gully remains securely positioned and fully operational.
 
Designed to facilitate easy access for maintenance and cleaning, the riser preserves a smooth internal pathway that allows water and debris to flow downward without restriction. Whether you are installing a new patio, driveway, or general perimeter drainage system, this uPVC bottle gully riser delivers professional-grade versatility and long-term reliability for your surface water management needs.
 
Bottle gully rising piece for height adjustment
For use with Bottle Gullies
160mm diameter and 325mm long
Simply remove the cover and frame from the Gully body and insert riser piece.
Solvent weld cover and frame into pipe (riser) end