Midi Heki 700 x 500 Roof Adaptor – Sprinter (2019+)
Upgrade your van conversion with the Midi Heki 700 x 500 Roof Adaptor, expertly designed for a fast, professional, and fully watertight installation. Specifically engineered for the Sprinter (2019 onwards), this adaptor neatly bridges the gap between your rooflight and the curved profile of your van’s roof.
Whether you’re a professional installer or tackling your own DIY van build, this adaptor provides a precise fit, speeds up installation, and delivers a clean, factory-style finish.
Precision Fit for Sprinter Roof Profiles
Modern van roofs feature subtle curves and ridges that can make rooflight installation challenging. The Midi Heki 700 x 500 Roof Adaptor removes uneven mounting surfaces by creating a perfectly level base for your Midi Heki 700 x 500 rooflight.
Manufactured from a single 15mm sheet of premium-grade PVC, this adaptor is:
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Highly durable
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Fully weather-resistant
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Built to withstand extreme temperatures and harsh outdoor conditions
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Designed for long-term performance
The result? A secure, watertight seal that protects your van conversion from leaks and moisture ingress.
Key Features
✔ Robust 15mm high-quality PVC construction
✔ UV-stable and weatherproof material
✔ Significantly reduces rooflight installation time
✔ Ensures a precise, leak-free seal
✔ Provides a clean, professional finish
✔ Suitable for trade professionals and DIY van builders
Compatibility
Compatible with Midi Heki 700 x 500 rooflights
Fits Sprinter (2019+)
Specifically shaped to match the factory roof contours of these models for a precise and secure fit.
Easy Installation
Difficulty Level: Easy
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No specialist tools required
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Installation guide included
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Designed to save valuable fitting time
Optional Fitting Kit (Recommended)
For optimal sealing and secure mounting, an optional fitting kit is available, which includes:
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2 x 5m rolls of 19mm W4 mastic sealing tape
This ensures maximum weather protection and long-lasting durability.
The Ideal Rooflight Mounting Solution for Sprinter Conversions
If you’re installing a rooflight into a Sprinter (2019+), the Midi Heki 700 x 500 Roof Adaptor offers a straightforward and dependable solution. Designed for accuracy, reduced labour time, and a professional finish, it’s an essential component for any high-quality van build.
Please Note: We can custom cut these to suit any position on your van’s roof; however, a £50 design and custom cutting fee will apply.




