HydroFlex Chair

The HydroFlex is made for rehabilitation.

It offers high levels of adaptability for those with more complex posture and pressure management needs. Ideal for use in all care environments.

Please Call 01522 420091 to Discuss Your Ordering Options


What is it?

The HydroFlex Chair is made for rehabilitation. It offers high levels of adaptability for those with more complex posture and pressure management needs. This highly flexible chair combines an articulating back, Back Angle Recline (BAR), Tilt-in-Space (TiS) and integral pressure management. Ideal for use in all care environments.

Guaranteed to transform lives of every patient where ‘seating matters’


Product Details

Ergonomic Push Handle

For safe and easy handling – designed with carers in mind.

Articulating Back & Adjustable Wings

The seat back allows for specific profiling to accommodate kyphosis and other complex head positioning issues. Ensuring maximum comfort for the user.

Flat Back Rest with WaterCell Technology

Delivers pressure relief and long-term comfort by offering simple conforming support to the lower back whilst the user is sitting upright and in a tilted position.

Elevating Legrest

Lifts the legs above hip level to reduce lower leg swelling and to help the user stabilise their posture.


Back Angle Recline (BAR)

Adjusts the angle between the chair seat and back to provide a more comfortable hip position.

Tilt-in-Space (TiS)

Allows you to change the reclining angle of the chair seat and back without adjusting the user’s hip and knee angle.

Ergonomic Push Handle

For safe and easy handling – designed with carers in mind.

Adjustable Seat Depth

The seat depth can be easily adjusted to ensure the user’s pelvis is right back in the seat, correctly aligned and not tilting into a sacral sitting posture.

Flat Back Rest with CareFlex WaterCell Technology®

Delivers pressure relief and long-term comfort by offering simple conforming support to the lower back whilst the user is sitting upright and in a tilted position.

Maximum Pressure Relief

The seat cushion uses CareFlex WaterCell Technology® and Vapour Permeable (VP) upholstery, which work synergistically to provide continuous pressure relief.

Independently Elevating, Channel Legrest

An articulating legrest with integral footplate to provide a comfortable posture. Lifts the legs above hip level to reduce lower leg swelling and to help the user stabilise their posture.

Angle Adjustable, Fold Down Footplate

Single-side release of the footplate angle control mechanism simplifies operation. Lowering the footplate, adjusting the angle and stowing the footplate can all be carried out from one side of the chair.

4 Fully Braked Castors

The castors have sealed bearing hubs for enhanced durability and smoother manoeuvrability. Each castor has a full brake to stop rolling.

Fixed or Loose Covers

Choice of fixed covers for easy cleaning, or loose covers for multi-user adaptability.

Articulating Back and Adjustable Wings

The seat back allows for specific profiling to accommodate kyphosis and other complex head positioning issues. Combined with tailored adjustment of the wings (inwards or outwards) a stable head position can be achieved ensuring maximum comfort for the user.


Pelvic Belt

A simple webbing belt ideal for use during portering.

Padded Pelvic Belt

Maintains pelvic position. Padded for user comfort.

4-Point Padded Pelvic Belt

Four straps control pelvic position for maximum stability. Padded for user comfort.

Groin Harness

A positioning aid to provide maximum pelvic control and prevent the user from sliding forward in the seat.

Chest Harness

Gives comfort and support without restricting active positioning.

Sternum Harness

Provides greater upper trunk stability but allows for user movement.

Anterior Knee Strap

Used with the pommel to block the front of the knees, pushing the pelvis into an upright position.

Foam Headrest

Available in shallow, medium and deep, providing basic lateral head control.

Neck Headrest

Has a deep profile to give greater lateral control.

Soft Headrest

A comfortable rectangular pillow, available in shallow and deep.

Soft Profiled Headrest

A contoured pillow to fit shoulders, neck and head providing a supportive head position.

Soft Pillow Headrest

A deep, ultra soft pillow that conforms to the shape of head and shoulders providing a higher level of comfort.

InLine Headrest

Memory Foam lining providing full cranial support with cut-away sides for unobstructed sight and hearing.

Laterally Contoured Backrest

A sculpted cushion to give moderate postural support to the trunk maintaining midline position movement.

Adjustable Laterals

Adaptable thoracic control with independent height and width adjustment. Various pad size and shape options for simple or complex spinal profiles.


Pads which provide simple lateral support. Covered with Vapour Permeable (VP) fabric.

Transfer Arm

Arms can be removed for client transfer in and out of the chair. Available on one or both sides.


Supports the whole knee preventing legs from pinching together.

Seat Wedge

Creates an acute hip angle to keep the pelvis in the back of the seat.

Detachable Footplate Pad

To provide greater comfort. Attaches to the footplate.

Extended Footplate

For full foot sensory feedback.

Chair Protector

Fits over the seat, arms and lower back. Prevents contamination and stops debris getting trapped in the moving parts of the chair.

Manual or Motorised

Chair functions can be operated by manual gas action control or battery controlled motors.

Seat Width Adjustment Kit

Includes a pair of arms (choice of 2 heights), back option (flat or contoured) and appropriate cover.

Technical details

Client Groups

  • Semi-ambulant and non-ambulant
  • Cerebral Palsy (particularly young adults)
  • Stroke rehabilitation
  • Dementia care
  • Motor Neurone Disease
  • Multiple Sclerosis
  • Road traffic accident and spinal cord injury

Size Options

  • Small: Internal Seat Width 280/330/380/430mm
  • Small: Maximum User Weight 100kg
  • Medium: Internal Seat Width 350/400/450/500mm
  • Medium: Maximum User Weight 150kg

Product Testing

All the products are tested rigorously to international standards.

When we develop a new chair, we carry out extensive user trials to ensure it works safely, easily and logically. Our chairs are also tested by an internationally recognised test house for strength, stability and durability.

The CareFlex Testing Process:

Stage 1

The testing starts as soon as the chair is taken out of the box. Our User Instructions are
assessed to see how well the chair can be set up and used safely. The chair is checked over
for pinch points and finger traps to safeguard against injury.

Then the heavy stuff starts…

Stage 2

This is a three-part process which involves checking the chair for stability, durability and
resistance to impact.

1. Stability tests check that the chair will not tip over in day-to-day use. The chair is tested
under extreme conditions, such as with the legrest fully elevated and the back fully tilted
or reclined before maximum user weight loads are applied.

The chair must remain stable throughout these tests.

2. Durability tests replicate years of constant use. They help to measure what effect fatigue can
have on the structure and operation of the chair. Because specific standards relate to use in
different environments, for example high wear areas such as nursing homes, the testing
machine applies up to 200,000 maximum user weight loading cycles to the seat and back.

3. Resistance tests focus on the structure of the chair. Each chair is tested for strength, the
ability to resist impact and extreme exerted forces to the arms, seat, legrest and back.

In addition to strength, stability and durability tests, the components and materials used in our
chairs are monitored so that they comply with the relevant standards for fire retardancy,
biocompatibility and safety requirements for electrical components used in medical devices.

Once our chairs have passed these tests, we can be confident that with the right care and
maintenance they will provide years of trouble-free service.

Environments of Use

  • Domestic and homecare
  • Nursing and residential homes
  • Specialist wards (stroke rehabilitation, brain or spinal injury, intensive therapy units)

Colour Outer

Colour Skin Contact Area

How to Videos

HydroFlex Serial Number Location

HydroFlex Changing the Seat Width

HydroFlex Adjusting Seat Depth

HydroFlex Adjusting BAR and TiS

HydroFlex Articulating Back

HydroFlex Adjusting the Articulating Back

HydroFlex Adjusting the Wings

HydroFlex Fitting & Adjusting Laterals

HydroFlex Adjusting the Leg Rest

HydroFlex Adjusting the Footplate

HydroFlex Adjusting the Footplate Length

HydroFlex Closer Look at the Footplate

Happy Customers

Bathing Cradle Review

Hi Andrew

We have had a really exciting day today: our pupil has tried the Shower Cradle in the pool and it is absolutely amazing!! We set it up this morning with the rolls and headrest ect and the pupil has just been in the water independently for the first time with the TA beside and not needing to hold on to support at all.

we have shown it to lots of staff and will now start assessing other pupils to see how many more would benefit from using the cradle. it is so adaptable with the adjustable mesh/tilt feature and the different loops to hoist it into the water and it will make such a difference to our less mobile pupils.

Parent of Blind 10yo Child

“Being 10yrs old, blind unable to talk or walk would be enough to moan about for most…yet our daughter didn’t moan…until we got the Durance Junior chair.!!

She loves it so much that unless we get her out of her wheelchair, after school or hospital trips and into her comfy Durance Junior she wont stop moaning…she loves it.

Great personalised service were the customers needs are put first…Many other companies would do well to learn from Andrew at ambre-stone”

Team Lead for Children’s Occupational Therapy and Physiotherapy

I have just been sent the most wonderful photo of ………  in her Durance chair.  Her mum is thrilled that …….. is finally comfortable.

Many thanks.  Sorry I cannot share this photo with you but take it from me she looks fab.

Good job!

Professional Occupational Therapist

Using The Hugga system has resulted in demonstrable and measurable clinical improvements, protection or maintenance of body shape for my clients. A highly effective solution to postural care.

General Manager, Barchester Care Home

Having worked with Andrew providing care equipment support over a long period, I can share my appreciation of the genuine way he looks after his customers and clients a like. Someone who I have been happy to trust.

Critical Patient Carer, Hospital – Birmingham

The chairs are light and easy to move, meaning that they can be quickly manoeuvred to reach the patients who need them the most, and are ideally suited to the fast-paced Critical Care environment. Great service – thanks!

Manager, Assisted Living Centre

I find Ambre-Stone Healthcare very professional and competent with our patients, assessing their needs with our therapists – so correct equipment is put in place at all times.

Very reliable, knowledgeable about equipment helpful and most of all very friendly!


Matron, NHS Hospital

I would just like to say that the service we receive from Andrew Smith at Ambre-Stone is excellent. He always rises to any challenge we set him.  I know I can ring him at a moment’s notice if a piece of equipment needs attention.

Patient Carer, Barchester Care Home

The guys at AmbreStone Healthcare Equipment always give excellent advice and from there years of knowledge in the healthcare industry, they give efficient professional service.