Kayflow 170mm SuperDeep External Black Stop End

Kayflow 170mm SuperDeep Commercial External Black Gutter Stop End

Heavy-Duty End Cap for High-Capacity Guttering Systems

The Kayflow 170mm SuperDeep External Black Gutter Stop End is designed to securely cap off the end of a gutter run, providing a watertight seal that prevents leaks and overspill. As part of Kayflow’s extra high capacity guttering range, this stop end is engineered for commercial and industrial buildings where high flow rates must be managed effectively.

Manufactured from durable, UV-stable uPVC, it will not fade, rust, or require painting, ensuring a long-lasting, low-maintenance finish. The pre-fitted seal retaining clip system allows for fast and secure installation—simply clip the back into place and gently pull down into the front clip to create even pressure on the seal for a reliable, leak-proof joint.

For maximum support, always install a fascia bracket within 150mm of the stop end to prevent sagging under heavy water or snow loads.

✅ Key Features & Benefits

• Watertight Seal – Prevents leaks and overspill at the gutter termination point.

• External Fitting – Designed to fit over the outside of the gutter profile.

• Durable uPVC – Weather-resistant, UV-stable, and maintenance-free.

• Quick Installation – Pre-fitted seal retaining clip system for a secure fit.

• Professional Finish – Clean black appearance, ideal for commercial buildings.

• Installation Tip – Support with a fascia bracket within 150mm for long-term stability.

📏 Specifications

• Product Type: External Gutter Stop End

• System: Kayflow SuperDeep 170mm Commercial Range

• Colour: Black

• Material: uPVC

• Fitting: External – fits over gutter profile

• Installation: Clip system with pre-fitted seal

• Maintenance: UV-stable, rust-proof, low-maintenance

✨ Finish your guttering system with confidence. The Kayflow 170mm SuperDeep External Black Gutter Stop End delivers a watertight seal, durable construction, and a professional finish for high-capacity commercial installations.

• Delivery: 1-2 Working Days
• Weight: 0.23 Kg
• Brand Name: Kayflow
• Colour: Black
• Material: PVC-U
• Guarantee: 10 Years Manufacturers
• Lead Time: Into Order 3-5 Days

1. What is the purpose of this stop end?

The external stop end caps off the end of a 170mm SuperDeep commercial gutter run, providing a watertight seal and preventing leaks or overspill.

2. Why is it called an external stop end?

It is called "external" because it fits over the outside of the gutter profile rather than inside.

3. How is it installed?

The back end clips in first, followed by gently pulling the gutter down inside the front clip, which applies even pressure to the rubber seal to create a waterproof joint.

4. Does the stop end need extra support?

Yes, you should fix a fascia bracket within 150mm of the stop end to prevent the gutter from sagging under the weight of water or snow.

5. What gutter system is it compatible with?

It is designed for Kayflow’s 170mm SuperDeep extra high-capacity commercial guttering system.

6. What material is it made from?

The stop end is manufactured from durable, high-quality uPVC for long-lasting performance.

7. Is it UV stable?

Yes, it is UV stable to prevent fading or discolouration over time.

8. What colour is available?

It is supplied in a sleek black finish for a professional appearance.

9. Is it low maintenance?

Yes, the stop end requires no painting, will not rust, and only needs occasional cleaning.

10. Where is this product typically used?

It is ideal for large-scale commercial or industrial guttering systems where high-capacity water management is required.