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Pump Nut Spanner 52mm Product Code: 37949

2'' (52mm). 400mm long. Quality tool for use on most nuts next to domestic circulating pumps.


  • Steel Construction
  • Suits Most Nuts
Additional Information
Technical Specification
  • Brand : Monument Tools
  • Total Product Weight : 0.103 kg
  • Model No : SFX2040G
  • Pack Size : 1
  • Manufacturer Guarantee : 1 Year Guarantee
  • Pieces in Pack/Case : 1
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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€23.45 Incl. 20% VAT

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Pump Nut Spanner 52mm is rated 4.0 out of 5 by 21.
Rated 5 out of 5 by from Does what it should Undid the pump nuts without a problem. Fitted nicely.
Date published: 2017-07-17
Rated 5 out of 5 by from Pefect fit. Perfect fit, nice and tight! A little expensive but shorter than a large adjustable so fits into a more compact space.
Date published: 2016-10-29
Rated 5 out of 5 by from Geat Pump Spanner Bought this to reposition my expensive bronze water pump. The two highly trained and expensive plumbers that fitted it had done so with the pump oriented in the wrong sense, such that the bearings were being put under undue pressure. I only found out when another plumber pointed it out. Checked the manufacturer data and sure enough it was wrong. So now it is correctly positioned but probably too late to stop it eventually failing too early. Expensive plumber ignoring all my attempts to contact him and discuss. Hopefully I will get some more use out of it before it fails. Great spanner, did the job without rounding the flats on the nut.
Date published: 2015-03-16
Rated 5 out of 5 by from Perfect for a circulator pump Nice spanner with tight fit on pump nuts. Just the job.
Date published: 2014-11-22
Rated 5 out of 5 by from best pump union spanner great pump union spanner with plenty of leverage. best spanner ive ever used
Date published: 2014-11-08
Rated 5 out of 5 by from Pump Nut Spanner 52mm Pump Nut Spanner 52mm A 'propah' mans tool. Heating pumps...no problem 'ave it!
Date published: 2013-10-02
Rated 5 out of 5 by from Pump Nut Spanner 52mm Pump Nut Spanner 52mm A 'propah' mans tool. Heating pumps...no problem 'ave it!
Date published: 2013-10-02
Rated 3 out of 5 by from Variable quality mind the gap! Bought 2 of these to remove my thermal store circulating pump, the jaw gap is variable as others have reported, at the open end one was 52.5 mm, the other 51.7 mm (not great for a 52mm pump nut!), the first one fitted well, the second would not "slide" on to the nut, I had to lower it on from above and it was tight but just fitted, it seems that the majority of the opening is about 52mm but the gap at the open ends does vary. Glad I got the two! Pricey at £20 each given the variable gap opening.
Date published: 2013-04-03
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