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Travis Perkins£4.24Visit shop Wavin Osma SquareLine stopend external 100mm black 4T811B
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The Wavin Osma SquareLine External Stopend (4T811B) is a professional-grade component designed for homeowners and contractors working with 100mm square guttering systems. Its primary function is to provide a secure, watertight seal at the end of a gutter run, preventing water egress and maintaining the integrity of your roofline drainage. While this component is highly durable and easy to install, it is specifically engineered for the Osma SquareLine profile and may not be compatible with other brands or rounded guttering systems.
| Model Part Number | 4T811B |
|---|---|
| Brand | Osma |
No, this product is exclusively designed for the 100mm SquareLine gutter system.
The stopend features a built-in retained seal, so additional sealant is generally not required if the gutter end is cut correctly.
This is a British and European standard that certifies the quality, dimensions, and durability of PVC-U rainwater systems.
Yes, the PVC material is formulated to withstand exposure to sunlight without becoming brittle or fading significantly over time.
While it can be removed, the rubber seal may lose some effectiveness over time or if handled roughly; it is best to leave it in place once installed.
Ensure the gutter end is cut perfectly square and check that no debris is trapped between the gutter and the integrated rubber seal.
Check the gutter end for rough plastic burrs left after cutting; file these down smoothly before attempting to reattach the stopend.
Installation requires no specialized tools; simply ensure the cut end of your 100mm SquareLine gutter is clean and free of burrs or debris before pressing the stopend into position. This product is strictly compatible with the Wavin Osma SquareLine system and is intended for use with 61mm square downpipe components. To maintain the system, periodically inspect the gutters for debris buildup, such as leaves or moss, which can cause water to overflow and put unnecessary pressure on the stopend seal. Clean the exterior with mild soap and water if needed; avoid using harsh chemical solvents that could degrade the PVC finish.
