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Cylinder for Thermofor roof vent opener
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Cylinder for Thermofor louvre opener

Replacemt cylinder suitable for Thermofor louvre openers. Also suitable for Robinsons and Alton branded louvre openers.Please note this is the cylinder only, no fittings are included.Overall length: 170mm (7 inches).

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£15

Customer Reviews

(4.9)

81 reviews, average 4.9 out of 5 stars

Based on 81 reviews

Review data

5 star reviews

93.8%

4 star reviews

6.2%

3 star reviews

0.0%

2 star reviews

0.0%

1 star reviews

0.0%
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Recent reviews

David Crane

5 out of 5 stars

Very professional service.Delivered next day for a reasonable fee

August 2026

Chris Southworth

5 out of 5 stars

The new one is working perfectly.. Notes: don't forget to put it in the fridge for 24 hours before fitting. You need to use the adjusting screw from the old one. Finally, the 2 screws (the trunnion pivot) are tricky to refit, and difficult to find if you drop one!

July 2026

Michael Potter

5 out of 5 stars

Extremely prompt service. Easy to fit and working well.

July 2026

Michael Curas

5 out of 5 stars

Delivered next day followed instructions replaced old unit in 30 minutes without removing ventopener not bad for a OAP 5 STARS

July 2026

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