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Formula PTO Plus on Pronto M91
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Invacare Pronto M91 Power Wheelchair - Tilt only Seating
True center-wheel drive technology provides tightest possible turning radius.

Product ID: M91-TS
HCPCS Code: K0856/K0858**
HMESA CODE: 20-10-04-02
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Starting At...$5,620.00*

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The Invacare Pronto M91 Power Wheelchair provides excellent maneuverability and an intuitive driving experience. Invacare SureStep Suspension helps ensure everyday obstacles and threshold are handled elegantly for a smooth ride while 4-pole motors provide high torque.

  • Center Wheel Drive platform
  • TCD Traction Control Design improves traction in forward and reverse
  • Invacare Stability Lock helps ensure the chair stays stable with the driver in control
  • Technologies to help overcome everyday environments with ease
  • 4-Pole motors for true gear reduction

  • Base Width:25.5"
    Base Length:36"
    Overall Height:39.5"
    Seat To Floor Height:17.75"
    Product Weight:Total mass with batteries: 304 lb.
    Total mass without batteries: 230 lb.
    Base weight with batteries: 210 lb.
    Base weight without batteries: 136 lb.
    Product Weight Capacity:375 lb.

    NOTE: For more detail please refer to the full specifications brochure link above, or call Customer Service at (800) 333-6900. All specifications, prices, and product configurations are subject to change without notification. Accessories and seating products shown in the photographs are not necessarily included in the base price of wheelchair. Please refer to current price lists located at

    * MSRP - Manufacturer's Suggested Retail Price does not include optional equipment and accessories that may be available for this product.

    ** This information is not intended to be, nor should it be considered billing or legal advice. Providers are responsible for determining the appropriate billing codes when submitting claims to the Medicare Program and should consult an attorney or other advisor to discuss specific situations in further detail.

    Documents are available for download in PDF format. Download Adobe Acrobat PDF reader.