Coninx Internal Gutter End Cap, uPVC Rainwater Fitting

Internal Gutter End Cap

The Coninx Internal Gutter End Cap provides a secure, leak-proof termination for standard rainwater troughs, preventing overflow and directing water flow toward designated downpipes. This component fits snugly inside the gutter profile to maintain a clean aesthetic while ensuring a watertight seal. It is specifically engineered for high-capacity drainage systems used in residential and commercial construction across Kenya.

Built for the Job

Plumbers and roofing contractors use these fittings to close off the high end of a gutter run or any section where a downpipe is not present. Proper termination prevents water from spilling over onto the fascia boards and rafters, which can lead to timber rot and structural damage over time. In high-rainfall regions, the integrity of the end stop is vital for maintaining the structural health of the building envelope. The internal design allows for a flush fit against walls or obstacles where an external cap might interfere with the installation space. The material thickness is optimized to withstand the hydraulic pressure of a full gutter during peak storm conditions without bowing or popping out of the track.

• Closing off open ends in multi-level roofing drainage configurations.

• Directing water toward outlets in long commercial guttering installations.

• Retrofitting existing rainwater systems to improve water management.

Product Highlights

High-Grade uPVC Material

This component is manufactured from unplasticized polyvinyl chloride, which offers superior resistance to UV degradation and airborne pollutants.

Installation Features

• Internal push-fit design for quick assembly on site
• Dual-ribbed sealing surfaces to prevent capillary water bypass
• Impact-resistant molding to prevent cracking during ladder work or transport

Technical Specifications

What’s Included

• 1 x Coninx Internal Gutter End Cap

On-Site & Workshop Notes

• Ensure the gutter edge is cut square and deburred with a file before inserting the end stop to avoid damaging the seals.

• Apply a small amount of silicone lubricant to the internal rim of the gutter to facilitate a smooth entry for the fitting.

• Check that the component is fully seated against the internal molded stops to maintain the integrity of the rainwater run.

• Store these parts away from direct sunlight when on site for extended periods to prevent heat warping before installation.