Product Description

The resultant ‘dynamic sitting’ stimulates the muscles, helping to prevent back strain or alleviate existing pain. Just as importantly, this stimulation retards the natural build-up of muscle tension, helping to lessen the effects of tiredness.

The unique split back pads of the ‘Duo-Back®©’ are positioned halfway between the top and bottom of the spine so that when reclined the lower sections of the pads move forward straightening the spine and pelvic girdle. This is a vital point often stressed by both back specialists and office ergonomists.

Height adjustable, the backrests correctly support the back of any person. The space between the pads allows the spine to move freely. Instead of putting pressure on the spine, support is evenly distributed throughout the back muscles.

The backrests are pivotally mounted enabling them to move in all three axes – forwards and backwards; up and down and left to right. It means that the back is fully supported in all positions. Uniquely, the mountings provide the back with ‘active support’. The shape and mobility of the backrests ensures that they follow the contours of the back as it moves, varying the support needed and stimulating muscle tone and blood circulation. Duo-Back®© is office ergonomics perfectly applied.

Standard features:

  • Synchronous multi-lock mechanism
  • Easy reach weight tension adjustment: 45-125kgs
  • 100mm Seat slide
  • Independent height adjustable backpad
  • Width adjustable DuoBack backrest pads
  • 5 Star black plastic base

Product Specs

Seat Height

45 – 58cm

Seat Width


Seat Depth

40 – 45cm

Back Height

48 – 56cm

Back Width

40 – 45cm




5 Years

Weight Limit

19 Stone

Arms Included


Grahl Type 11 AS Duo-Back Chair

From: £667.00 Ex VAT
Product code: 8-0401-0184

The perfect backrest has to fulfil two apparently contradictory criteria:
It should not only support the upper body and take over the functions of the muscles which support the back; but also follow and facilitate the movements of the upper body.

  • We ship: within United Kingdom only
  • Delivery time: click here

For more information call us on 023 80240 300

  • Fast delivery: available on request
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