10 Best Internal Letter Box Flap

10 Best internal letter box flap - December 2025

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Last Updated: 15-12-2025

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TERF® 280mm X 80mm Traditional Type Internal Letter Flap Polished Chrome 280mm X 80mm Interior Inner Flap Letter Box Post Cover Plate including Fixing Screw

TERF

9.8

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Internal Letterbox Draught Excluder 13.5 Inch (34.2cm) PVC Draught Letter Plate Seal Letter Box Flap - Prevents Draughts Coming Through The Letter Box - for Wooden or uPVC Doors - White with Flap

ZAVIA

9.6

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Letter Box Cover with Brush & Flap for Internal OR External Use - Silver Finish

STORMGUARD

9.5

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Best value

16% Off

STORMGUARD 06SR0310000G Letter Box Cover with Brush & Flap for Internal OR External Use-Gold Finish, External dimension 293 x 77mm

STORMGUARD

9.2

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Internal Letterbox Draught Excluder 11.5 Inch, Metal Letter Box Flap, Aluminium Letter Plate Cover with Brush Seal, Letter Box for Door, Weatherproof, Easy Installation for Wooden and uPVC Doors

Generic

9.1

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7% Off

Door Letterbox Flap 11.5 Inch 1 Set,Letter Box Cover for Front Door with Draught Excluder Brush and Sprung Prevents Draughts Coming Through Compatible with UPVC Composite Wooden Doors (Gold)

RTDHO

8.8

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3% Off

Door Letterbox Flap 11.5 Inch (29.3cm) 1 Set,Letter Box Cover for Front Door with Draught Excluder Brush and Sprung Prevents Draughts Coming Through Compatible with UPVC Composite Wooden Doors Silver

RTDHO

8.6

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KWJEIULSOQ Letter Box Flap with Brush 11.5in, Silver Aluminum Alloy Internal Letterbox Draught Excluder, Suitable for 40-80mm Thickness Wooden Doors, PVC Doors, Home and Office Composite Doors

KWJEIULSOQ

8.4

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49% Off

Letter Box Cover with Brush & Flap for Internal OR External Use - White Finish

STORMGUARD

8.2

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Internal Letter Box Draught Excluder Cover With Brushes & Flap - White PVC

STORMGUARD

8.1

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TERF® 280mm X 80mm Traditional Type Internal Letter Flap Polished Chrome 280mm X 80mm Interior Inner Flap Letter Box Post Cover Plate including Fixing Screw

Internal Letterbox Draught Excluder 13.5 Inch (34.2cm) PVC Draught Letter Plate Seal Letter Box Flap - Prevents Draughts Coming Through The Letter Box - for Wooden or uPVC Doors - White with Flap

Letter Box Cover with Brush & Flap for Internal OR External Use - Silver Finish

STORMGUARD 06SR0310000G Letter Box Cover with Brush & Flap for Internal OR External Use-Gold Finish, External dimension 293 x 77mm

Internal Letterbox Draught Excluder 11.5 Inch, Metal Letter Box Flap, Aluminium Letter Plate Cover with Brush Seal, Letter Box for Door, Weatherproof, Easy Installation for Wooden and uPVC Doors

Door Letterbox Flap 11.5 Inch 1 Set,Letter Box Cover for Front Door with Draught Excluder Brush and Sprung Prevents Draughts Coming Through Compatible with UPVC Composite Wooden Doors (Gold)

Door Letterbox Flap 11.5 Inch (29.3cm) 1 Set,Letter Box Cover for Front Door with Draught Excluder Brush and Sprung Prevents Draughts Coming Through Compatible with UPVC Composite Wooden Doors Silver

KWJEIULSOQ Letter Box Flap with Brush 11.5in, Silver Aluminum Alloy Internal Letterbox Draught Excluder, Suitable for 40-80mm Thickness Wooden Doors, PVC Doors, Home and Office Composite Doors

Letter Box Cover with Brush & Flap for Internal OR External Use - White Finish

Internal Letter Box Draught Excluder Cover With Brushes & Flap - White PVC

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