Eurotech 4X4 SL Ergonomic Task Chair with Adjustable Arms (498SL)

The Eurotech 4X4 SL (model 498SL) is a fully adjustable ergonomic task chair built for all-day seating. Molded, contoured cushions and a ratchet-adjustable back pair with a wide range of mechanical adjustments, making it a practical fit for commercial workstations, conference-adjacent task seating, and home offices alike.

Why people choose it

• Genuinely adjustable fit — seat height, seat depth, and a 2.8" ratchet back-height adjustment let you dial in support for your body.
• Posture support for keyboard work — forward seat tilt and seat-angle adjustment help maintain proper ergonomic posture at the desk.
• Adjustable arms — arms adjust for both height and width to position your forearms correctly.
• Controlled recline — tilt-tension control adapts the recline rate to the user's weight, with a tilt lock to hold position.
• All-day comfort — molded contoured cushions and a waterfall seat front reduce pressure behind the knees.

Overview

The 4X4 is an economical yet comfortable series of chairs that provide all-day comfort through molded contoured cushions and a full set of ergonomic adjustments. The 498SL configuration adds center/swivel-tilt, back-angle adjustment, and height- and width-adjustable arms, giving each user the controls needed to set up a supportive seated position.

Adjustments & features

• Tilt Tension Control — Recline rate adapts to weight of user.
• Center or Swivel-Tilt — Chair tilts from a point under the center of the seat allowing user to rock back and forth. Tension adjustable.
• Tilt Lock — Locks out tilt function.
• Back Angle Adjustment — Sets back angle for personalized comfort in reclined position.
• Seat Height Adjustment — Sets seat height to desired position relative to floor.
• Waterfall Seat — Front of cushion slopes to reduce pressure on the back of the knees.
• Seat Depth Adjustment — Adjusts seat depth relative to back.
• Forward Seat Tilt — Changes angle of seat to enable proper ergonomic posture while using a computer keyboard.
• Width Adjustable Arms — Adjusts arms in or out for proper ergonomic positioning.
• Arm Height Adjustment — Adjusts arm up or down for proper ergonomic positioning while seated.
• Seat Angle Adjustment — Seat angle will lock in any position from front to back.
• 2.8" Ratchet Back Height Adjustment — Backrest easily adjusts up or down relative to seat for personalized lumbar-region support and comfort.

Specifications

Who it's for

• Commercial offices — task seating for workstations, shared desks, and team areas where users need individual adjustability.
• Home and remote offices — a supportive full-time desk chair for professionals working from home.

FAQ

Does the 4X4 SL have adjustable arms?
Yes. The arms adjust for both height and width to position your forearms for proper ergonomic support.

Can I adjust the seat depth?
Yes. The chair offers seat-depth adjustment relative to the back, plus a 2.8" ratchet back-height adjustment for lumbar positioning.

How does the recline work?
It uses a center/swivel-tilt with tilt-tension control that adapts the recline rate to your weight, plus a tilt lock to hold a set position.

What is the seat-height range?
The seat adjusts from 18.0" at its lowest point to 21.5" at its highest.

What colors are available?
This listing offers Gray and Brown.

Shipping

🚚 Free shipping within the continental United States, direct from the manufacturer.