Magflap® MK3 | Horizontal Letterbox Draught Excluder

£39.99 GBP

Sale Sold out

Taxes included. Shipping calculated at checkout.

Color: Black

Locking Keyset (optional) Allows for internal manual locking. Without Keyset With Keyset

Additional Gasket - Allows for 18mm of nut or bolt clearance. No Yes

Further Details

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

Quantity

Family Owned
Free Returns
Fast Shipping

View full details

EASY USE

Versatile Installation

Can be fitted internally or externally, offering flexibility for various door types. Can be fitted by you or a trusted installer, see our guide below.

Fitting Guide

Proven Thermal Technology

Whether you are in a hot climate keeping the cold in or a cold climate keeping the heat in, the Magflap MK3 is thermally effective

FUSS FREE

Brushless Design

All of our products are brushless. Our perfectly balanced Magman strength magnets eliminates the need for bristles, ensuring a smoother, longer-lasting performance.

The Iconic

Magman® Seal

A strong magnetic seal ensures no gaps for air to seep through, preventing draughts all year round.

carefully crafted for over 15 years

Family Owned

Our mission is to restore the brilliance of British craftsmanship.

About Magman

3 Year Warranty

Not only does our product come with a 3 year warranty, if you move house and remove your Magflap you can send it back to us to be refurbished ready to install at your new home.