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, F94, K22 & 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.

Allows the chair it's installed on to handle weights of up to 150kg, while allowing the user to adjust the chair height within the 'tall' range of measurements = 480-570mm. This Gas Stem is compatible with all of our 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.

Our Glides are excellent replacements for castors if you don't need to be mobile on your ergonomic office and gaming chairs. These glides are compatible with all of our chairs.

These castors benefit from brake-loaded technology, which reduces the risk of a chair rolling once someone has sat in it. The rubberised soles also help the chairs they are installed on from rolling.

Allows the chair it's installed on to handle weights of up to 150kg, while allowing the user to adjust the chair height within the 'short' range of measurements on the chair's product pages. This Gas Stem is compatible with all of our 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.

Our Glides are excellent replacements for castors if you don't need to be mobile on your ergonomic office and gaming chairs. These glides are compatible with all of our chairs.