Dual Safety Thermostat 7" Product Code: 21275

Dual safety system prevents overheating problems.


Temperature range: 10-70°C. Not for use with Ariston immersion heaters.
Additional Information
Technical Specification
  • Brand : Unbranded
  • Product Length : 7 "
  • Product Type : Dual Safety Thermostat
  • Total Product Weight : 0.04 kg
  • Temperature Range : 10-70 °C
  • Pack Size : 1
  • Manufacturer Guarantee : 1 Year Guarantee
  • Pieces in Pack/Case : 1
Product Contents
Delivery & Returns


Standard delivery service up to 3 working days: €8.95

Free delivery on all orders over €70.00

Click here to see information on our delivery service



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.


Click here to see information on returns and cancellation

€13.45 Incl. 23% VAT

Add to Wishlist

More Items to Consider

Loading... Loading...
Dual Safety Thermostat 7" is rated 4.0 out of 5 by 23.
Rated 5 out of 5 by from Heater Problems Fixed Had to replace the boiler immersion heater thermostat but needed the smaller 7" version. Tried all local plumbers to no avail until discovered that Screwfix had one in stock. Within 30 minutes I had reserved, paid, collected and fitted the new part. British Approved dual safety means I can count on a reliable part.
Date published: 2019-06-08
Rated 5 out of 5 by from Excellent Excellent good quality product, very good value, as always excellent service from Screw fix,
Date published: 2019-05-05
Rated 4 out of 5 by from IMMERSION THERMOSTAT A good quality product but as stated by previous reviewers the large head made it tricky to fit inside the immersion heater cover and needed modification of one of the heater connections to make room which was a bit of a nuisance. It works well with fairly accurate temperature setting and the overheating prevention facility is a plus if it works should it be needed unlike the old one it replaced.
Date published: 2019-03-21
Rated 5 out of 5 by from Immersion Thermostat Ordered part on internet and picked up part within the hour. Fitted in a few minutes, very easy.. I hope it will be reliable as it is only a few days since fitting.
Date published: 2019-02-05
Rated 5 out of 5 by from IMMERSION HEATER THERMOSTAT Very easy to order online and slick collection process in store.
Date published: 2019-01-02
Rated 1 out of 5 by from Failed after 13 months Installed as a replacement for off peak water heating. Lasted just over a year and then failed. Head is a little large and fiddly to install. Would not recommend.
Date published: 2018-12-15
Rated 5 out of 5 by from Quality item Fast collection as always. Very well packaged and easy to replace. Has the feel of a quality item rather than other ones I have fitted.
Date published: 2018-11-19
Rated 5 out of 5 by from Reliable thermostat. Fitted these in place of various bigger brand units that always seem to be over sensitive and trip out then requiring resetting, I have had no problems with these stats they seem to be a good balance between reliability and safety you can also set the water to a decent temperature level highly recommended.
Date published: 2018-10-21
  • y_2019, m_7, d_12, h_19
  • bvseo_bulk, prod_bvrr, vn_bulk_2.0.12
  • cp_1, bvpage1
  • co_hasreviews, tv_0, tr_23
  • loc_en_IE, sid_21275, prod, sort_[SortEntry(order=SUBMISSION_TIME, direction=DESCENDING)]
  • clientName_screwfix-ie