i29's ergonomic engineering delivers superb support and dynamic movement.

Certified to BS 5459, the i29's patented floating lumbar and pelvic support system, along with its intuitive controls, ensure that users of all sizes, shapes, and weights receive support and dynamic movement the moment they sit in the i29. This chair is ideal for 24/7 use.

Allows the chair it's installed on to handle weights up to 200kg  (typically 150kg) while allowing the user to adjust the chair height to the standard range. The heavy-duty gas stem is compatible only with the i29 or V46 range of ergonomic chairs.

Steps to Replace a Height Adjustment Gas Strut:

1. Lay down some material (tarpaulin or newspaper) to protect the surface you’re working on.

2. Turn the chair on its side and tap the centre of the base with a rubber mallet away from the seat. The 5-star base should come loose.

3. Use a pipe wrench near the top of the gas strut and twist until it releases from the chair seat. Apply WD-40 if you’re having trouble.

4. Place the bottom of your new gas stem into your chair’s 5-star base.

5. Lift both into the chair’s seat and flip it over. Everything should be fitted correctly.

6. Test the new gas strut by sitting on the chair and adjusting the height.

Alternatively, refer to our manual here or request a gas strut removal tool from our Service Team.

If you have any difficulties, feel free to call our friendly service team at 0333 123 200 or email service@hoodseating.com for guidance.

The Silhouette OS.2 is a premium gaming chair engineered for peak performance. Featuring a robust aluminium frame, breathable Black Diamond mesh, and advanced ergonomic features such as a dual-pivot knee-tilt mechanism and adjustable lumbar support, this chair delivers unparalleled comfort and durability. It's designed to optimise your posture, reduce fatigue, and elevate your gaming experience.

Dominate your game with unparalleled comfort. Silhouette OS.2, the leading ergonomic gaming chair, elevates your performance and supports your well-being.

K22 is the chair for any project; bespoke for your needs. Simple and intuitive controls make the K22 easy to adjust with minimal training, helping everyone to sit properly. Guaranteed for 10 years. With a range of options and finishes available, you can mix and match to create the perfect chair tailored to your specific needs.

The professional solution for stubborn repairs and sinking chairs.

Replacing a gas lift is notoriously the most difficult part of chair maintenance. Over time, the cylinder becomes tightly wedged into the mechanism and base, often making it impossible to remove with standard household tools.

Our Gas Cylinder Removal Tool is the definitive fix. Whether you are replacing a faulty lift or fixing a sinking chair to maintain your ideal ergonomic height moving forward, this heavy-duty kit is essential. Engineered for the entire Hood Seating range, it uses a mechanical tension system to safely "pop" the cylinder out, providing maximum leverage without the need for brute force.

Key Features:

• Tailored for Hood Seating: Precision-engineered for a perfect fit across our entire range of task and office chairs.

• Universal Potential: The adjustable collar design offers broad compatibility; while we cannot guarantee a fit for every brand, it is frequently successful with gas lifts from other major manufacturers.

• Heavy-Duty Durability: Constructed from high-grade materials specifically chosen to withstand the intense pressure required for cylinder extraction.

• Protect Your Investment: By eliminating the need for hammers or pipe wrenches, you significantly reduce the risk of scratching the base or damaging the internal mechanism.

• Effortless Operation: Features a simple bolt-and-tension design that handles the heavy lifting, making repairs accessible for anyone.

• The "Sinking Chair" Solution: Ideal for removing failing cylinders so you can install a fresh lift, ensuring your chair stays at your preferred height without slipping.
• Permanent Height Fix: Perfect for chairs with recurring lift failures. Use the tool to secure the cylinder at a fixed height, ensuring your chair remains exactly where you need it forevermore. 

NOTE: This tool does not remove the  Gas Cylinder from the 5-star base.

Frequently Bought Together: Standard 7" Gas Lift Cylinder – Polished Chrome

We asked our customers 'What is missing in the Hood portfolio of chairs?' – the feedback was that our seating collection needed a quality, value-for-money, stylish ergonomic chair. The C19 task chair is the result of this development process. It's exceptionally Comfortable, excellent value for money, is built to last and features numerous ergonomic and adjustable features designed to encourage a healthy posture for its user.