Deepflow Half Round Gutter Black

Deepflow Half Round Gutter Black

Handle extreme rainfall with ease using our Deepflow Half Round Gutter Black 115mm x 75mm. This 4m length is engineered for homeowners who need the classic aesthetic of a half-round profile but require the massive drainage capacity typically reserved for commercial buildings.

  • Double Flow Capacity: The 75mm depth allows this system to manage roughly 100% more water runoff than standard 112mm gutters, preventing overspill on large roof areas.

  • Architectural Versatility: Fits the visual style of traditional homes while providing the performance needed for steep-pitched or expansive modern roofs.

  • UV-Stabilized PVC-U: Durable, high-gloss black finish that resists fading and remains structurally sound through UK freeze-thaw cycles.

£18.50 Incl. VAT

Availability: 50 in stockGTIN: 5055149901003 EAN: 5055149901003 Category:

Description

What is 115mm x 75mm Deepflow Guttering used for?

The Deepflow Half Round Gutter is specifically designed for properties where standard 112mm guttering is prone to overflowing. By increasing the depth to 75mm, this “Hi-Cap” system can service much larger roof areas—up to 205m² per outlet—without needing additional downpipes. It is the preferred choice for detached houses, steep-pitched roofs, and regions in the UK that experience high-intensity rainfall.

Compatibility and Installation

It is important to note that while this looks like standard guttering, it is not directly compatible with standard 112mm brackets or unions. You must use 115mm Deepflow/Hi-Cap fittings. However, it is designed to connect to standard 68mm round downpipes, allowing you to upgrade your horizontal guttering without replacing your existing vertical pipework.

Why Upgrade to Deepflow?

At ECO HEAT SHOP, we recommend the 115mm x 75mm system as a preventative measure against water damage. Standard gutters often fail during “flash” storms, leading to water cascading down the building’s fabric. The extra 20mm of depth in this profile acts as a buffer, safely containing the surge and directing it to the outlet, protecting your foundations and fascia boards from long-term rot and erosion.

Technical Specifications

  • Width: 115mm.

  • Depth: 75mm.

  • Length: 4 Metres.

  • Material: High-Impact PVC-U.

  • Compliance: Manufactured to BS EN 12281-1 and BS EN 607.

  • Flow Rate: Approximately 4.3 litres per second (industry leading for this width).

  • Colour: High-Gloss Black.

Additional information

Weight 0.6 kg
Dimensions 4000 × 115 × 75 mm

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