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Palram-Canopia Automated Vent Arm

Product Code: 701338
  • £49.99
  • Engineered Specifically to Replace a Manual Vent Arm
  • Programmable to open and close at desired temperatures.
  • Easy to Attach to your Greenhouse Vent
Out of Stock | 3 - 7 Working Days Delivery

This clever accessory from Palram works by automatically opening your greenhouse vent at warm temperatures and closing it when it is cooler. Easy to attach, this Automated Vent Arm allows peace of mind over your plants enjoying the right temperatures to flourish.

  • Mechanical so no electricity needed
Review Summary - 4.4 out of 5 based on 5 ratings.
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Extremely happy with time it took to be delivered, although it was during isolation period. Vent works well. Clare

June 4, 2020 | Clare Blandon

Works a treat, I reckon its easier to install at the beginning rather than a retrofit as the bolts are a bit fiddly to get in.

May 22, 2019 | Dave Charles

10 out 10

April 22, 2019 | Steve Burt

Palram Automated Vent Arm

does what it was intended to do really well- once the greenhouse reaches 18 degrees it starts opening and continues to open to fully if the temp keeps rising, shuts in the same manor- read installation instructions as you need to put the mechanism in the fridge for 30min prior to installation I nearly missed this being an man & not normally reading the instructions.

June 14, 2017 | Stephen Mitchell

Palram Automated Vent Arm

I found the vent fairly easy to fit but I have had difficulty adjusting it to close completely. It opens wide during the day but does not close right down at night. I have adjusted it as much as possible but it still stays open a few inches.

June 22, 2016 | Caroline Boyce

When will I receive my order?

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Deliveries are mostly prearranged directly with yourself within a few days of placing an order; being booked in directly with a member of the delivery team/carriers. This can help to confirm a working delivery date which is best for you. When ordering, please provide an active mobile phone number to help delivery to be promptly booked in, and to ensure that there is no delay in receiving your order.

Please note, that some smaller items which can be posted or go via small carrier may be dispatched immediately, without contacting you first. If you have any doubts over your order status please contact us.

Will I receive a timeslot for my delivery?

As we use a wide range of carriers for delivery, you may not receive a time slot for your order. With most orders, you would be contacted first to arrange a delivery date, so you know in advance what day delivery has been booked in for. If you know you won’t be available for your pre-arranged day of delivery, please let us know in advance and we can pass this on to the carriers to investigate the possibility of your delivery being left with a neighbour or in a safe place.

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Is express delivery available?

There may be occasions where we can dispatch items sooner, should there be space available on a delivery run. If you are looking to receive a product sooner than the estimated delivery lead time, please contact us and we can see check delivery availability to see if this is possible.  

Some smaller products are applicable for next day delivery. This will be shown in the stock message on the product page, and at stage three of checkout.

Delivery Exemptions

A selection of the brands which we sell are unfortunately subject to certain geographical delivery exemptions. Please see our Delivery & Returns page for further details

Can I change my mind and return my order?

If you no longer require an item or if it just isn’t for you, you can return any product(s) as a change of mind within 14 days of receipt of the good(s). This is assuming that the good(s) are unused, in the original packaging, and in the original resaleable condition. Simply contact us at for the return address of any items you wish to return.

Please note that perishable goods (such as turf and bulk bags of soil), and made to measure items (Burbage Fencing/Gates/Railings etc) are excluded from return.


For further delivery and returns information, see here – Delivery and Returns