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Onyx K4 Wheelchair

The Roscoe Onyx K4 Wheelchair is a high-strength lightweight wheelchair and extremely versatile to meet your patient’s individual needs.
List Price: $350.00
Our Price: $304.99
You Save: $-45.01
Seat Size / Legrest Choices

Manufacturer: Roscoe Medical

Product SKU: Roscoe W4 +options


The Roscoe Onyx K4 Wheelchair is a high-strength lightweight wheelchair and extremely versatile to meet your patient’s individual needs. With the built-in seat and upholstery extension combined with all of its other unique features that come standard, the Onyx K4 easily adapts to any patient’s individual needs. It offers superior value and functionality for those looking for a high-performance rental product at a moderate price.


  • Built-in seat rail and upholstery extension easily adjust seat depth from 16” to 18” without any additional kits or upholstery.
  • Adjustable height back from 17” to 19” in 1-inch increments
  • Flip-back padded arm rests are height adjustable from 10” to 14” to accommodate a seat cushion
  • Adjustable angle back from 5˚ - 20˚
  • Adjustable-angle caster forks feature three height adjustments
  • Dual axle provides for seat-to-floor positions from 19.5” to 17.5”
  • Quick-release 24-inch composite mag-style wheels with urethane tires are lightweight and maintenance free
  • Precision sealed wheel bearings in front and rear ensure long lasting performance and reliability
  • Includes tool-free adjustable front riggings with composite angle adjustable footplates (swing-away footrests or elevating leg rests) to allow for more relaxed foot positioning
  • Elevating padded leg rests are equipped with a pneumatic piston for infinite elevating positions
  • Adjustable anti-tipper with push-pin flip-up wheels included. Never needs to be removed.
  • Durable, heavy-gauge flame-retardant nylon upholstery resists mildew and bacteria
  • Chart pocket on backrest provides additional convenience
  • Easy push-to-lock wheel locks
  • 5 year warranty on frame and cross braces; 90 days on all other parts


  • Product Weight²: 34 lb.
  • Overall Width with Arms: 22 ½” / 24 ½” / 26 ½”
  • Overall Depth: (without front riggings) 32”
  • Seat Width: 16” / 18” / 20”
  • Seat Depth: 16” - 18” adjustable
  • Seat-to-Floor Height¹: Adult 19.5” / Hemi 17.5”
  • Back Height: 16” - 18”
  • Back Style: Height Adjustable
  • Weight Capacity: 300 lb.
  • Frame Style: Cross-Brace
  • Front Riggins Options: Elevating or Swing-Away
  • Armrest Style: Height Adjustable Flip Back, Desk-Length Arms
  • Available Models - W416168E, W416168S, W418168E, W418168S, W420168E, W420168S


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I'm very satisfied with my brace. I did think it took a little too long to receive it considering I spent almost as much for shipping as the item cost. <p> RESPONSE:<br> Delivery time was within reason, but may had been a day quicker. There is a business day turnaround, & s...

Oct 04, 2017