0 My Basket

Want free delivery? Add £200 more.

No products in the basket.

Payment Icons

Guaranteed Safe & Secure Checkout

  • loading
  • loading
Schlegel 250x500 Transparent

Schlegel Q-Lon Retro 21L | Retrofit Draught Seal

26+ Save 2.5%
51+ Save 5%

From £5.65


From £6.78

VAT Inc.
In Stock for Next Day Delivery
30 Day Money Back Guarantee
Buy in Bulk & Save
Product Code: QRF21L
Payment Icons

Guaranteed Safe & Secure Checkout

Schlegel Q-Lon Retro 21L draught and weather seal is a high performance, non corrosive, low friction elastomeric seal. Suitable for the perimeter of timber casement windows, vertical sliding sash timber windows, head and jamb of internal timber doors, loft hatches and trap doors. The Q-Lon Retro 21L has been designed for quick fitting and is an ideal replacement seal for the refurbishment and upgrade of existing windows and doors.

This non-corrosive elastomeric seal is designed with a rigid PVC-u carrier and is UV light stable, easily compressed for ease of door operation and has excellent memory, returning to its original shape after compression. Schlegel Q-Lon Retro 21L remains flexible under extreme weather conditions, from -30C to +70C to factor in seasonal gap size changes and is also dirt and grime resistant.

Schlegel Q-Lon Retro 21L seal should be fixed whilst the door or the window is closed. The seal needs to be in firm contact with all parts of the window or door with approximately 3mm compression for external doors and 1.5mm for windows & internal doors before the pin is driven home. There should not be a fixing more than 25mm from the end of the product, as the corners are mitred. To achieve a complete sealing system the catch and stay areas must be draught proofed.

The Q-Lon window seal and door seal is available in white and is supplied in 2.1m lengths. The seal comes with stainless steel fixing pins, pre-punched / drilled at 150mm centres and if necessary pins can be driven through the carrier.

The Q-Lon Retro 21L is supplied with a slim carrier to give a neat unobtrusive finish.

Brand: Schlegel

Use Case: Weather

Applications: Doors & Windows

Material: PVC-u Carrier, Polyurethane Foam / Polyethylene Film insert

Finish: White, Brown

Fixing: Pins for Surface Mount

Included: 1x Schlegel Q-Lon Retro 21L Retrofit Draught Seal, 1x Pack of Pins

Length mm: 2100mm

Width mm: 13mm

Thickness mm: 17mm

Date Added
Schlegel Q-Lon Profiles Technical Data Sheet
12 October 2022
Technical Data Sheet

Frequently bought together

Current Product


Schlegel 250x500 Transparent
From £5.65 + VAT £6.78 VAT Inc.


Additional Products
Schlegel 250x500 Transparent
From £4.85 + VAT £5.82 VAT Inc.
Schlegel 250x500 Transparent
From £4.85 + VAT £5.82 VAT Inc.

Bundle Items

Schlegel Q-Lon Retro 21L | Retrofit Draught Seal
Schlegel Q-Lon Retro 21L | Retrofit Draught Seal
Total: £5.65
Total: £ Inc VAT

Customer Reviews & Questions

Leave a review


There are no reviews yet.

Be the first to review “Schlegel Q-Lon Retro 21L | Retrofit Draught Seal”

Your email address will not be published. Required fields are marked *

We currently have no reviews for this product.

Ask a Question

    There are currently no questions on this product