White window and door gasket weatherseal, push-fit into a groove on a frame, no adhesive required.
Technical diagram of the Aquamac Qlon AQ21 Schlegel window and door gasket weatherseal in white, showing dimensions in millimeters for profile width, height, and fitting depth.
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White window and door gasket weatherseal, push-fit into a groove on a frame, no adhesive required.Technical diagram of the Aquamac Qlon AQ21 Schlegel window and door gasket weatherseal in white, showing dimensions in millimeters for profile width, height, and fitting depth.

Aquamac Qlon AQ21 Schlegel Window and Door Gasket Weatherseal - White (Per Metre)

SchlegelSKU: HS904
162 reviews from verified buyers
Price:
£1.49

Key benefits

  • Stops draughts, damp and misting - common cause of fogged windows
  • Replaces decayed window/door gaskets - simple DIY, saves on energy
  • Sold per metre buy what you need - match your exact frame length

100% SECURE PAYMENTS

HASSLE FREE RETURNS

FULLY TRACKED DELIVERY

Description

Aquamac AQ21 is designed for use with timber windows and doors. It is simply pushed into the groove on the frame, no self adhesive is required. 

Technical:

  • Seal Gap - 5.0mm Min to 7.5mm Max
  • Kerf Slot Width - 2.7mm Nominal
  • Minimum Kerf Slot Depth - 5.5mm

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Frequently Asked Questions

The Aquamac Qlon AQ21 gasket is a high-performance weatherseal designed for windows and doors. It helps prevent drafts, water ingress, and heat loss, improving insulation and overall energy efficiency in your home.

Common signs include drafts, increased noise, water leaks, or visible wear and flattening of the seal. Damaged seals can reduce insulation and comfort. Learn more in How Do Window Seals Work.

The AQ21 gasket is designed to fit specific groove sizes and profiles. It’s important to match the shape and dimensions of your existing seal to ensure proper fit and performance.

Yes, replacing a gasket is typically a simple DIY job. You can remove the old seal and push the new one into the groove, ensuring it sits evenly for an effective seal.

Replacing worn seals improves insulation, reduces energy bills, prevents drafts and moisture, and enhances overall comfort in your home while extending the lifespan of your windows and doors.