MK2 vs MK3 Magflap — What’s Changed and Why It Matters
For over 5 years, the original MK2 Magflap was trusted by thousands of UK households to eliminate letterbox draughts and reduce energy waste. In 2024, we launched the Magflap MK3, building on all the feedback we received. This guide explains the key differences between the two models, what’s been improved, and why upgrading to the MK3 is worth it.
Whether you're searching for the best magnetic letterbox draught excluder, a solution to prevent cold air from entering through your door, or just trying to understand how the new model compares to the MK2 — this page covers it all.
Magflap MK2 vs MK3 – Feature Comparison
| Feature | MK2 Magflap | MK3 Magflap |
|---|---|---|
| Magnetic Sealing Strength | Moderate | 🔒 Reinforced magnets for a tighter seal |
| Materials | ABS composite | All steel construction (brushed & powder-coated) |
| Appearance | Slightly matte, exposed fixings | Sleek, minimal, with hidden screws |
| Noise Reduction | Good | ✅ Greatly improved thanks to sealed edge system |
| Installation Fit Range | Standard UK letterboxes only | 🔧 Adjustable inserts for wide compatibility |
| Recyclability | 🌍 90% recyclable parts | 🌱 99% recyclable parts |
| Durability | 2–3 years | ✅ 5+ years – new impact-tested design |
The MK3 Magflap — redesigned with magnetic power, smarter fit, and modern style
Why We Retired the MK2 Magflap
We retired the MK2 not because it failed — but because it paved the way for something better. The MK3 has been engineered with:
- Quieter flap action
- A stronger magnetic seal
- Greater weather resistance
- Easier recycling at end of life
FAQs
Can I still buy the MK2 Magflap?
The MK2 is no longer in production, but the MK3 Magflap offers direct compatibility and superior performance.
What’s the main difference between MK2 and MK3?
The MK3 includes upgraded magnets, improved durability, and a refined look. It's also easier to install on more door types.
Will the MK3 fit the same letterbox as my old Magflap?
Yes — and more. The MK3 has adjustable inserts that fit a wider range of standard and oversized UK letterboxes.
Does the MK3 Magflap still stop draughts as effectively?
It’s even better — tested in cold conditions and thermal environments for proven energy savings.