9 reviews

Positiv P-Sit Medium Back Ergonomic Chair

Positiv P-Sit Medium Back Ergonomic Chair
9 reviews
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Now £262.74 £218.95

Reasons to Buy

When budgets are really squeezed and you need to find a good quality, compliant chair, then the P-Sit is one to consider. more info
Now £262.74 £218.95
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Lead time: 15 working days
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It has a choice of 3 mechanisms, and a range of add-ons, so you can keep it as simple as you like, or include some important adjustments to make it more adaptable for you and your colleagues.

One of the most popular configurations is the 3 lever, tension control mechanism, combined with seat depth adjustment and inflatable lumbar pump, giving the chair the flexibility to fit a wide range of users and providing a degree of movement which is important for muscle movement and blood flow.

  • Choice of four colours - black, navy, royal blue and red
  • Height adjustable backrest
  • Black base as standard
  • Standard castors for carpeted floors
Fabric Colours
  • Available in black, navy, royal blue and red
  • Height adjustable armrests
  • Height and depth adjustable armrests
  • Foldaway armrests
  • Height and depth adjustable
Seat Slide
  • Adds a sliding seat range of 50 mm. Allows the depth of the chair seat to be independently adjusted. If you are short in the thigh you will need to reduce the seat depth so that you can reach the backrest and reduce pressure on the back of your thighs. If you are long in the thigh, seat depth adjustment will allow you to support your thighs correctly.
Coccyx Cut-out Seat
  • Coccyx relief recess cut out for injured coccyx
Seat Padding
  • Memory foam seat upgrade for extra comfort
  • AirCare plus seat option - unique AirCare technology system with superior enhanced comfort and pressure sensitive coccyx relief
Inflatable Lumbar
  • The lumbar pump adjusts the amount of air in a lumbar cushion, providing extra support
  • Black nylon base
  • Polished aluminium base
  • Castors for carpeted floors
  • Castors for hard floors
  • Glides - prevents chairs from moving
Fabric Upgrade
  • Upgrade to a wipe down 'Vita' Fabric - great for infection controlled areas
Upgrade to Draughtsman
  • Perfect for higher work surfaces - comes with a higher gas stem, footring and glides
Seat height:
460-600 mm
Seat width:
485 mm
Seat depth:
420 mm
Seat sliding range:
50 mm
Back width:
440 mm
Back height:
480 mm
Maximum user weight:
23.6 stone (150 kg)
5 years on structural parts
2 years on moving parts and fabric
1 year for 24 hour use
Q: How do I adjust the back angle of my Positiv P-Sit medium back chair?

On the right hand side of your Positiv P-Sit there is a lever. Lift this to adjust your backrest angle. Once you are comfortable, release the lever to lock the back angle in place.

Q: My gas stem seems a little stiff – is this normal?

Sometimes, over time, the gas stem can become a little stiff when trying to adjust the height. A quick and easy fix for this is using WD-40 or Vaseline. Apply a light layer of grease to the gas stem, then try adjusting the gas stem 3-4 times. The gas stem should now adjust easily.

Q: Can my seat slide forward?

On the left hand side of your Positiv P-Sit you will find the seat slide adjustment. About four fingers width between the front edge of the seat and the hollow of the knee provides good blood circulation.

Q: I have lumbar support in my backrest – how do I adjust this?

On the back of your P-Sit backrest is a lumbar pump. Use the pump to inflate the lumbar support to optimal comfort.

If you need to deflate your lumbar, simply push the valve button on the pump.

Q: How do I stop the rocking motion of my Positiv P-Sit medium back chair?

There is a tilt lock on the left hand side of your Positiv P-Sit. Push the lever down to lock the tilt motion.

Q: We have hot-desking and I want to adjust the backrest height – how do I do this?

Your Positiv P-Sit backrest works using a Ratchet Back Height Adjustment. Lift the backrest to adjust the back higher. Once it reaches the top, the backrest will fall to the bottom (the lowest setting).

Q: My seat pad is worn from years of use – can I just swap a new one for the old one?

You can swap the pads over. However, you will need to contact our customer services team on +44 (0) 345 345 0010 to arrange this, as this will need to be completed by one of our install technicians.

Still having problems?

Please give our customer services team a call on +44 (0) 345 345 0010.

Contact us about your seating project

Need more than one chair? However big or small your project is, we have a dedicated service to support you. Not only will you get expert advice, trials, delivery and set-up, but you’ll also benefit from great discounts on bulk orders.

To request a no-obligation quote, or to discuss your requirements further, please fill out our contact form and we will get back to you as soon as possible.

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