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The New 3120 Split Back Office Chair
The 3120 Split High Back offers exceptional comfort, quality, and ergonomics in a sleek new look with a newly designed fully adjustable articulating headrest and brand-new stitching pattern. Our fully adjustable 24-hour 3120 split back office chair is loaded with features to change how you feel about sitting. The heavy-duty ergonomic high back office chair design provides ample support and comfort throughout long days.
Standard Production Time - Ships in 4-6 Weeks.
Pairs well with

3120 Split High Back
If you have any questions, you are always welcome to contact us. We'll get back to you as soon as possible, within 24 hours on weekdays.
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From the First Shift to the Last—We've Got Your Back
Built for Performance. Designed for Comfort.
Built for performance and crafted with care, our products are made to support you through long hours, tough tasks, and everything in between. Whether you're outfitting a high-intensity workspace or just need everyday comfort that goes the distance, each piece is thoughtfully designed to deliver durability, flexibility, and ergonomic support where it matters most. From the smallest accessory to the toughest seating solution, we’re here to help you stay focused, comfortable, and ready for whatever the day throws your way.
24/7 USE TESTING
Rigorously tested to beyond the 24/7 test standards in both the US and the UK.
- FNEW 83-269E Test (surpasses the current 384 standard)
- ANSI/BIFMA X .5.1
- Fire Testing – CA 112
ERGO AIR SUSPENSION SYSTEM
Our Ergo Air Suspension (EAS2) dissipates the occupant’s weight over the entire chair surface, improving blood flow and increasing oxygen levels to tissues. Improved blood flow and increased oxygen levels improves concentration and productivity and decreasing fatigue. EAS2 conforms to the shape of each occupant, as it almost instantly bounces back to original shape when weight is lifted. No springs mean an eliminating the chances of squeaky or flattened springs.
ALL STEEL FRAME
Ten gauge steel maintains original tensile strength and rigidity over years of 24/7 heavy duty use. ADJUSTABLE ARMRESTS - No tools are required to adjust. You can choose style, width and height.
WARRANTY
24 Hour Seating offers one of the most comprehensive warranties in the industry, covering. The chair is covered by a 6 year parts warranty that includes product failure. The steel frame is warrantied for 10 years with a weight limit of 550 lb. in a multi-shift environment.