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OM Seating  |  SKU: PT79HD (IU79HD)

Office Master 24-Seven Intensive Use Heavy Duty High Back Chair | PT79HD (IU79HD)

$822.90

Engineered for demanding workspaces, the Office Master PT79HD Intensive-Use High-Back Chair combines rugged durability with ergonomic adjustability for all-day comfort. Designed to support up to 350 pounds, it features a memory foam seat, a seat slider, and a heavy-duty structure with multiple adjustments to tailor fit your desk and workflow.

Highlights

  • Weight capacity up to 350 pounds with a heavy-duty steel frame
  • Memory foam seat layer for enhanced comfort during long shifts
  • Seat slider and seat depth adjustment for personalized fit
  • Pneumatic height adjustment to match your desk setup
  • Tilting backrest with EZ back height adjustment for improved posture
  • Rocking tilt with adjustable tension for dynamic sitting
  • Seat tilting and back angle options to encourage movement
  • Durable construction designed for intensive-use environments
  • Dual-tone universal soft casters for smooth movement on various floor types
  • DCS seat system for consistent support and comfort

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Dimensions

Model/Sku Office Master PT79HD (formerly IU79HD)
Overall Width 28"
Overall Height 46.5-54.5"
Back 19.5"W X 28"H
Seat 21"W X 18-21.1"D
Seat Height 17-22"
Carton Weight 63 pounds
Warranty 7 year limited
Chair measurements are approximate and are based on switching cylinder heights on otherwise the same chair, with the same base and casters. Arm dimensions are approximate as actual measurements will vary depending on a variety of factors: cushion contour(s), seat upholstery, memory foam, etc.

More information about PT79HD Fabric and Arms selection is available on the PT79HD Options Library page

Downloads

Warranty

Office Master, Inc. (OM) warrants to the original purchaser that its products are free from defects in materials and workmanship for the applicable warranty period, as indicated below. 

Should any item fail, OM will – at its sole discretion – repair or replace, with a comparable product or part, any item found to be defective as a result of normal commercial use (i.e., a single 8-hour shift, 5 days per week).

This warranty does not apply to items subjected to abuse, misuse, neglect, alteration, or damage caused by shipment, storage, accident, fire, flood, or act of God.

Note: the actual warranty terms are specified on the chair product page. 

lifetime limited warranty:

The OM5 Series® (including the OM5 Active sub-series), Truly.® Series, and Ginny are covered by a lifetime limited warranty on all structural components as defined below.

12-year limited warranty:

Unless otherwise specified, all models not classified as budget or 24/7 or heavy-duty are covered under a 12-year limited warranty on all structural components as defined below.

7-year limited warranty:

Unless otherwise specified, all models classified as budget or 24/7 or heavy-duty or bariatric are covered under a 7-year limited warranty on all structural components as defined below. Budget series include: BC, SG, ST, and WS. Bariatric series includes: GY4B-26 and GY4B-30.

warranty terms:

Within a given model’s applicable warranty period, all structural components, including gas cylinders, wood, metal and plastic parts (i.e., chair frames, bases and control handles) are guaranteed against structural failure when under normal commercial use. All OM seating comes with a default 275 lbs. weight capacity limit unless otherwise specified by OM. 

For all models, consumable items (i.e., casters, glides, etc.) are covered by a 5-year normal commercial use warranty.

fabrics and foam:

OM in-stock upholstery & foam cushions are covered by a 5-year normal commercial use warranty. Normal wear and tear on fabrics such as wrinkling, dirt accumulation or gathering is not covered. This includes Truly.® Series “Jackets” and “Wraps”. Natural, minor variations may exist in color, surface, grain or texture of upholstery materials. As a result, any such variations are not warranted. COM/COL and graded-in fabrics are not covered.

warranty labor:

This warranty exclusively covers the repair or replacement of OM parts as determined by OM and does NOT cover any portion of field labor or service and does NOT cover any portion of field labor or service. For information regarding OM’s non-warranty shop time and related charges, please reference a current copy of OM’s pricebook, in the Terms and Conditions section.

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