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OM Seating  |  SKU: AF428

Office Master Affirm Executive High Back Cushioned Ergonomic Chair | AF428

$546.00


Office Master AF428 is an executive, high-back ergonomic chair designed for professionals who spend long hours at their desk. It features a fully cushioned, upholstered backrest that complements the Affirm mechanism family with dependable, adaptable support.

Highlights

  • Fully cushioned, upholstered rectilinear high-back backrest for ongoing comfort
  • Compatible with the AF4x8 mechanism family (0, 1, 2, 7, 8) for flexible setup
  • Pneumatic lift with EZ back height adjustment for quick, precise fit
  • 5-lockout positions (based on AF528) for precise tilt control
  • Synchronous seat/back tilt with independent back tilt to tailor recline
  • Seat depth adjustment to accommodate different leg lengths and seating preferences
  • Dual-tone universal soft casters for smooth movement on carpet and hard floors
  • Independent back tilt with side-mounted tension knob for fine-tuning resistance
  • Executive design with durable construction suitable for daily use

Shipping & Returns

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Dimensions

Model/Sku Office Master AF428
Overall Width 27"
Overall Height 38-46.25"
Back 18.5"w x 21"h
Seat 19"w x 17.5-20"d
Seat Height 17-22"
Carton Weight 58 pounds
Warranty 12 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 AF428 Fabric and Arms selection is available on the AF428 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.