EC378 - Office chair Hooker - Free user manual and instructions
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| Product Type | Ergonomic Office Chair |
| Brand | Hooker |
| Model | EC378 |
| Overall Dimensions (H x W x D) | 100 x 60 x 60 cm |
| Seat Height Range | 45 - 55 cm |
| Seat Depth | 50 cm |
| Seat Width | 50 cm |
| Backrest Height | 55 cm |
| Armrest Type | Adjustable (height and angle) |
| Weight Capacity | 120 kg |
| Net Weight | 15 kg |
| Material | Mesh back, foam seat cushion, nylon base |
| Upholstery | Breathable mesh fabric |
| Caster Type | Dual-wheel nylon casters for carpet |
| Gas Lift Mechanism | Class 3 gas lift with tilt lock |
| Tilt Function | Yes, with tension control |
| Headrest | Adjustable headrest included |
| Lumbar Support | Built-in adjustable lumbar support |
| Swivel Range | 360 degrees |
| Assembly Required | Yes, instructions included |
| Cleaning Instructions | Wipe with damp cloth; mild soap only |
| Safety Standards | ANSI/BIFMA X5.1 compliant |
| Warranty | 2 years limited warranty |
Frequently Asked Questions - EC378 Hooker
How do I assemble the Hooker EC378 office chair?
Follow the included assembly manual. Attach the base to the gas lift, insert the seat, and secure the backrest and armrests using the provided tools. Tighten all screws firmly.
What is the weight capacity of the EC378?
The chair supports up to 120 kg (265 lbs) as per safety standards.
How do I adjust the seat height?
Locate the lever under the seat and pull upward while lifting or lowering your weight to set the desired height. Release the lever to lock.
Can I replace the casters?
Yes, the casters are removable. Pull out the old ones and push in new standard 11mm stem casters suitable for your floor type.
How do I clean the mesh backrest?
Use a soft brush or vacuum attachment to remove dust. For stains, gently dab with a damp cloth and mild soap; avoid soaking the mesh.
Is the headrest adjustable?
Yes, the headrest can be moved up/down and tilted forward/backward for optimal neck support.
What should I do if the chair wobbles?
Check all screws and bolts for tightness. Ensure the gas lift is fully seated in the base. If the base is damaged, contact Hooker for replacement.
Does the chair have a lockable tilt?
Yes, the tilt tension can be adjusted and locked in an upright position using the knob below the seat.
How long is the warranty?
The Hooker EC378 comes with a 2-year limited warranty covering defects in materials and workmanship.
Can I purchase replacement parts?
Yes, spare parts like casters, gas lift, and armrests are available through Hooker customer service or authorized dealers.
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USER MANUAL EC378 Hooker
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Product information
Brand : Hooker
Model : EC378
Category : Office chair