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ThevoSiiS Therapy Chair by Thomashilfen

Starting at $1,749.00

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The ThevoSiiS Therapy Chair by Thomashilfen is a firm multi use chair that is great for sensory stimulation. It is perfect for assistance with body posture by slightly tilting the pelvis so that the spine can be straightened.



  • Available in five sizes to fit your growing child or loved one
  • Every size or variation comes with seat, back, and base frame
  • Base frame is height adjustable and tilt resistant
  • Push bar is optional
  • Comes with lever brake that can be operated by user or an assitant
  • Iliac crest and impulse generators can be individually adjusted in height and depth
  • Lots of leg room ensures freedom of movement and lateral gait pattern from seated position
  • See Chart for Weight Capacity


  • Additional Information:

    SpecificationsMiniSize 2NarrowPlusHigh
    Weight Capacity49 lbs265 lbs265 lbs265 lbs265 lbs
    Seat Height12.6 – 15”16.5 – 24”16.5 – 24”19.3 – 28”20.9 – 31.5”
    Seat Width5.9”7.5”6.3”8.7”7.5”
    Impulse Generators Height Adjustment10.8”7.1”7.1”7.1”10.8”
    Impulse Generators Depth Adjustment1.4”---1.4”
    Iliac Crest Support Height Adjustment3.2”3.2”3.2”3.2”3.2”
    Iliac Crest Support Depth Adjustment1.4”1.4”1.4”1.4”1.4”
    Overall Dimensions21.3” (W) x 19.7” (H) x 26.8” (L)23.6” (W) x 34.7” (H) x 22” (L)23.6” (W) x 34.7” (H) x 22” (L)23.6” (W) x 34.7” (H) x 22” (L)”23.6” (W) x 34.7” (H) x 22” (L)”
    Push Bar Height-34.7”34.7”34.7”34.7”
    Wheel Size3.9”3.9”3.9”3.9”3.9”
    Wheel Distance (Front)20.9”22.8”22.8”22.8”22.8”
    Wheel Distance (Rear)21.3”21.7”21.7”21.7”21.7”
    Suggested User Height (Inches)up to 49.2”up to 53.2”up to 53.2”up to 55.1”up to 57.1”


    Resources – Brochures, Videos and Manuals




    The ThevoSiiS Therapy Chair comes in several sizes and has several options that allow your growing loved one to have a wide range of motion all while keeping excellent posture and form while freely moving along their work space. Get yours today from Adaptive Specialties!



    Color: Black and red
    Weight Capacity: 265 lbs.
    Name: ThevoSiiS Therapy Chair by Thomashilfen
    Manufacturer: Thomashilfen
    : 8301




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