Extend High Back

About This Product

This chair comes with seat slide as standard.

Price £624.00 (Ex VAT)
Fabric Colour:

Product Options

DescriptionPrice Ex VATQty
RH Extend Neckrest£98.00
Optional Installation, Set Up and Training

Select this option to get the most from your purchase. One of our highly trained IST team will deliver the chair, show you what the knobs and levers do, explain good posture and demonstrate how to adjust everything for maximum comfort so that you can do it yourself in future.


Offers an outstanding specification for the price. High back & armrests as standard with the option of a neckrest.

The RH Extend is designed to give the best possible support, whilst encouraging dynamic sitting. As standard, the chair comes with a high back rest, aluminium base and castors for carpeted floors. The 220 model additionally features an independent seat-tilt/back-angle adjustment, so these can be set precisely according to the user's needs. Options include pivot-top arm rests and a neck support. Either model is available in an ESD variant, if required.

Downloadable instructions


  • Outstanding specification for the price.
  • Ingenious synchro/slide mechanism (Model 120) for optimum support in all positions.
  • The 120 model has a synchro/slide mechanism for optimum support.
  • The 220 model features independent back and seat adjustment.
  • Integrated, easy-access controls and infinite-lock rocking action.
  • Supplied with high back as illustrated (optional armrests and neckrest).
  • These chairs are made to order and delivery may take up to 2 weeks (we do not charge your credit card until we are ready to despatch).
  • Winner of the Fira Ergonomics Excellence Award.

See also:


Please look at our comprehensive list of Chair Features & Benefits.

Feature Availability
Synchronous Mechanism Standard
Asynchronous Mechanism No
Free Float (Rocking) Feature Standard
Independent Seat Tilt Adjustment No
 Independent Back Angle Adjustment No
Seat Slide Standard
 Adjustable Lumbar Support No
Pelvic Support No
Height Adjustable Arm Rests Option
 Width Adjustable Arm Rests Option
Depth Adjustable Arm Rests Option
Independently Adjustable Head Rest No
 Independently Adjustable Neck Rest Option
Suitable for Clean Room No
ESD (Anti Static) No
Suitable for 24 Hour Use Option

Part Number: RH-EXMED



Part Number


Type (Low, Medium, High Back, Split Seat/Back) High Back
Weight (Packed) (kg)


Weight (Un-Packed) (kg) 28
Seat Height Adjustment (Y/N/O) Y
Back Height Adjustment (Y/N/O) Y


Maximum Weight Capacity

133kg - 21 Stone

A - Back Height (mm)


B - Lumbar Height (mm) NA
(B) - Pelvic Support (mm) NA
 C - Chair Arm Height (mm) 215-295
D - Seat Depth (mm)


E - Seat Height (mm)


F - Seat Width (mm) 460


What our customers say

"Fantastic desk such sublime innovation. Very useful and a huge compliment with the Spira plus chair."

daical on the Motus 3000 Sit-Stand Workstation

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