SitOnIt Amplify Large & Tall 400 LB 24/7 Task Chair with Seat Slider

Item Number:
  • Extended 12 Year Warranty, Even in 24/7 Applications
  • 400 LB Weight Capacity
  • Seat Depth Adjustment & Adjustable Lumbar
  • 100s of Fabric, Vinyl, and Leather Options

Made To Order - Ships in 3-4 Weeks

Warranty:   Limited 12 Year Warranty Handled by Husky Seating Learn More

Full Specifications

**Please note:  The first photo depicts large and tall model.  Additional photos show additional colors options, but the chair in these photos is the standard Focus model.  There are subtle design differences between the two, including base, armrest style, and overall size.

SitOnIt Seating offers an impressive lineup of big & tall office chairs designed for intensive use environments.  All SitOnIt 24/7 products are backed by a 12 year limited warranty to ensure quality and longevity of the brand.

SitOnIt's Amplify Large & Tall model brings the ergonomics and comfort of the standard Amplify office chair into a heavy duty package.  With a 400 LB weight capacity, the Amplify Large & Tall task chair provides users with features like adjustable armrests, a seat depth adjustment, an adjustable lumbar support band, and enhanced synchro-tilt.

Choose from thousands of material colors and options including fabric, vinyl, and leather.  Choose a mesh back, or fully upholstered back, in 10 different backrest mesh colors.

  • Highback Design
  • Adjustable lumbar support band
  • 10 bleach-cleanable mesh back colors, or Fully Upholstered Back
  • Enhanced synchro mechanism with seat depth adjustment option
  • Waterfall seat
  • Choose armless, height adjustable, or height/width adjustable armrests.
  • Choose black nylon or polished aluminum base
  • 400 lb weight capacity
  • Heavy Duty Hard Floor and Carpet Casters
  • 12 Year Warranty for 24/7 Applications
  • 1,000’s of fabric, vinyl, and leather options


  • Overall Width with Arms:  29"
  • Overall Depth:  27.75"
  • Overall Height:  42
  • Seat Width:  22"
  • Seat Depth:  17.5"
  • Seat Height:  20.25"
  • Back Width:  19.5"
  • Back Height: 22"
  • Weight with Arms:  50 LBS
  • Weight Capacity:  400 LBS
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