Varilite Evolution PSV Cushion

$274.95 - $333.95
(1 review) Write a Review
Appropriate for those at moderate to high risk of skin breakdown.
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  • Made in the U.S.A.

The Evolution PSV wheelchair cushion by Varilite is an ideal choice for those at risk of tissue breakdown and those with symmetric positioning needs as it features a foam-air floatation design with pressure setting valve that takes the guesswork out of air inflation adjustments. 

Three types of foam are used to create the functional areas of the foam bottom of this seating surface:

  • soft foam for the decubitis-sensitive areas of the ischium 
  • medium foam for the thigh trough, pelvic bucketing and pre-ischial bar
  • firm foam for the perimeter and thigh separator for added stability

The single chamber air floatation section allows for adjustment of the air inflation level to conform to the user's body contours for better pressure distribution using Varilite's exclusive PSV (pressure setting valve). This valve is marked with three pre-set positions which provide the best range of immersion into the cushion for most users. When the user is sitting on the fully inflated cushion the PSV senses the amount of internal pressure in the cushion and will release the appropriate amount of air in order to reach the desired pre-set position. 

This design makes it easy to adjust this air wheelchair cushion to meet changing support and comfort needs and eliminates worry about using pumps, accessories, kneading or manipulation making this cushion valued by caregivers and users alike.

The Evolution PSV cushion comes with a four-way stretch cover that is available in mesh or incontinence styles and features a non-slip bottom and hook and loop attachment to ensure the cushion stays in place during daily activities and transfers.

Product Features:

  • Easy to use, no pumps or accessories
  • Positioning supports improve stability
  • Air-foam flotation design maximizes comfort
  • PSV (pressure setting valve) makes air level adjustments automatic
  • Ideal choice for users at risk of tissue breakdown and symmetric positioning needs
  • Recommended for individuals with motor and neurological dysfunction
  • Four-way stretch fabric cover is available in mesh or incontinence style
  • Non-skid bottom with hook and loop attachment keeps cushion in place

This cushion is available with the optional PSV (pressure setting valve) that automatically adjusts the air inflation level based on a pre-set position. See the Evolution PSV cushion for additional details. 

Looking for a replacement or spare cover for your Varilite Evolution PSV cushion? CLICK HERE

Care Medical Source offers a variety of wheelchair cushionswheelchair backs and seating accessories. Can't find what you're looking for? Give us a call at 1.800.443.7091 and we'll be happy to help.

 Cushion Composition:  Air-Foam Floatation
 Base Composition:  No base
 Height:  3.8" (without load)
 Valve Type:  Standard
 Chambers:  Single
 Weight Capacity:  500 lbs.
 Maintenance:  Once a week allow your cushion to fully inflate overnight with all valves open
 Warranty:  2 years (excluding the cushion cover)



Most items purchased from Care Medical Source are returnable within 30 days of the date of purchase if the item is in new, resalable condition and in its original packaging containing all parts and accessories. Some items are non-returnable for hygienic reasons or if the item was custom-made by the manufacturer to your specifications. Exceptions would be if the item(s) received were different than the item(s) ordered. We support the products that we sell by honoring all manufacturer warranties; however, each manufacturer has different warranty policies and procedures. Please view our Return/Warranty Policy for additional information.


  • 3
    Great Product but Doesn't Last Long

    Posted by Chuck M on Sep 6th 2018

    I've been using these cushions for over 10 years and they are great for pressure distribution and seating comfort. I can only give it 3 stars because every cushion I have owned has failed within 2 years. They start to leak air around the valve (PSV). All have been replaced under warranty but it's a hassle. (original post date January 3, 2013)