Dam Buster R300 Flatback with Adjustable Receiver

Dam Buster R300 Flat Back – Versatile Gutter Solution

The R300 Flat Back Dam Buster is a flexible and reliable solution for your roofing projects. Designed to fit box gutters up to 300mm, this unit also supports side-outlet configurations, offering maximum versatility across a wide range of sizes.

Each R300 Flat Back comes with an adjustable adapter, allowing a perfect fit for gutters from 200mm to 300mm. Please note that the top trim/beading is sold separately.

As the most popular size in the Dam Buster range, the R300 covers the majority of roofing requirements. For easy and compliant installation, each unit is supplied with pre-installed fixing tabs.

Colour Options Available:

Classic Finish: Surfmist, Monument, Night Sky, Shale Grey, Dover White, Woodland Grey, Evening Haze, Southerly, Dune, Paperbark, Classic Cream, Bluegum, Windspray, Gully, Jasper, Wallaby, Basalt, Ironstone, Deep Ocean, Cottage Green, Pale Eucalypt, Manor Red

Special Finish:

ULTRA finish: Made to Order (ETA 7–10 days)

Matt finish: Made to Order (ETA 7–10 days)

For assistance with colour selection or special orders, contact us directly.

For technical specifications, installation instructions, and size calculators, visit the Dambuster Technical Downloads page: Technical Downloads

Key Features:

• Fits box gutters up to 300mm
• Supports side-outlet and flat-back configurations
• Adjustable adapter fits sizes 200–300mm
• Pre-installed fixing tabs for secure installation
• Top trim/beading sold separately
• Wide range of standard and special colour options

Upgrade your roofing system with the R300 Flat Back Dam Buster — engineered for durability, flexibility, and professional results.

Downloads