Reflex Expansion Vessel 18Ltr Product Code: 26891

Suitable for heating and cooling systems. Not suitable for potable water.


Max. pressure 6bar. Max. temperature 120°C.
Additional Information
Technical Specification
  • Brand : Reflex
  • Product Type : Expansion Vessel
  • Litre Capacity : 18 Ltr
  • Bar Pressure : 3 bar
  • Pack Size : 1
  • Manufacturer Guarantee : 1 Year Guarantee
  • Pieces in Pack/Case : 1
  • Maximum Bar Pressure : 6 bar
Product Contents
Delivery & Returns


Standard delivery: €15

Free delivery on all orders over €70.00

Click here to see information on our delivery charges and times



Hopefully you won't need to return an item, however, if you do, it is our aim to make this as simple as possible. By following the guidance below you can help us to help you when a product is not what you expected, or is faulty. Your statutory rights are not affected by this guidance.


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€37.45 Incl. 20% VAT

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Reflex Expansion Vessel 18Ltr is rated 3.7 out of 5 by 17.
Rated 1 out of 5 by from Failed Again! Suggest that anyone using this expansion vessel replace it every 12-18 months. Pinholes, splits occur after this period resulting in leaks. Installation in loft and ceiling has been replaced twice due to leaks. Should follow my own advice!
Date published: 2018-09-29
Rated 4 out of 5 by from New Install It appears to be good quality and comes with instructions. Was installed from new so I cannot rate this one for Reliability (but some rating is mandatory - unfortunately! Hence the 3 stars) as only time will tell.
Date published: 2017-09-08
Rated 5 out of 5 by from Quality product Bought this as a short-term fix for a heating system, but I'm confident it could last for years.
Date published: 2017-06-28
Rated 4 out of 5 by from vessel only one problem I found but gave me some extra work. The thread on the vessel has been powder coated and could not fit valve until I cleared coating.The thread should have been taped during powder coating process.
Date published: 2016-10-10
Rated 4 out of 5 by from ex vessel It did what it was supposed to do, good value for money and time wil tell on reliability.
Date published: 2016-08-03
Rated 1 out of 5 by from poor pressure vessel brought this make from screwfix 15-3-15 pin hole today just over one year old ?. used on fresh water hws .
Date published: 2016-05-23
Rated 5 out of 5 by from Easy to fit expansion tank Easy to buy easy to fit easy to review. A good product with quick and efficient service at the store'
Date published: 2016-03-07
Rated 4 out of 5 by from Value Expansion Vessel The expansion vessel comes with reasonable instructions and seems good value for money, although the steel could have been a bit thicker. Performance and reliability will have to be seen over the long run so only 3 for now.
Date published: 2015-12-02
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