Magflap® MK3 | Horizontal Letterbox Draught Excluder

The additional gasket allows for 18mm of clearance over protruding nuts or bolts.

✅ Engineered All-Steel Construction — Durable, rust-resistant build with a sleek powder-coated finish

✅ Horizontal Design — Fits standard UK letterboxes (ideal for retrofits or new builds)

✅ Zero-Brush Design — Uses precision magnets to create a clean, silent seal — no more frayed bristles

✅ 99% Recyclable — Made with sustainable materials for eco-conscious homes

✅ Strong Magnetic Closure — Resists wind pressure and improves thermal performance

✅ Easy Self-Fit — Install in under 10 minutes using our guide (no special tools required)

✅ Compatible Surfaces — Works on wood, uPVC, metal, and composite doors

✅ Lockable Option Available — Internal Locking Keyset prevents tampering and fishing

✅ Made in the UK — Family-run business since 2009, handmade in small batches for quality