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Sapphire MK3 Medium Back Chair


From: $440.00

The Sapphire MK3 medium back chair is a great choice for users looking for good lumbar support without the need for high back support.


Offering great lumbar support focusing on support for your lower back.

The 3 lever ergo mechanism allow you to independently adjust the back angle, seat tilt and seat height of the chair to allow you to set yourself in a truly ergonomic position. Completed with a back height adjustment with wheel lock that allows you to adjust the lumbar support to the desired height.

Choose a fabric from the Warwick Ashcroft range pictured. Other fabric options can be supplied but may attract an extra charge.

Choose from a range of seat sizes to suit almost all users.


  • X-Small 510mm Wide x 430mm Deep
  • Small 510mm Wide x 460mm Deep
  • Medium 510mm Wide x 490mm Deep
  • Large 510mm Wide x 510mm Deep
  • Approximate seat height range: 490mm to 620mm high


  • Medium Back 380mm High x 415mm Wide
  • Locking hand wheel height adjustment

Chair Fabric Colour:

  • Any colour from the Warwick Ashcroft fabric range

Optional Features*:

  • Sliding seat (one size fits all)
  • Air Lumbar – inflatable lower back support
  • Available in Vinyl and other fabric options
  • Other castor options include hard floor, lever lockable, glides and braking loaded and unloaded

*please contact us for a quote if you would like to choose one of the above features


  • 4 chair adjustments – seat height, seat angle, back height, back angle
  • Black outer plastic back
  • Standard castors – suitable on carpet and chair mats
  • 135mm gas lift
  • Optional height adjustable arm supports
  • Your choice of fabric colour
  • Weight rated to 120kg
  • Made by ARTEIL, Perth, Australia
  • 5 Year Warranty*

*warranty covers the mechanisms on the chair and does not include the fabric.

How to place an order:

You will need to select an option from both drop downs above. When all options have been selected your price will be displayed under the options.

  • Seat Size: select the seat size you want your seat in
  • Arm Options: select if you would like the chair with arms or without
  • Chair Fabric Colour:  please type your colour choice from the Warwick Ashcroft fabric range in the text box

Lead time: 8-10 weeks.

Additional information

Weight 15 kg
Dimensions 65 × 65 × 100 cm

X-Small 510mmW x 430mmD, Small 510mmW x 460mmD, Medium 510mmW x 490mmD, Large 510mmW x 510mmD


380mm High x 415mm Wide


No Arms, Height Adjustable Arms