Grundfos UPS2 15-50/60 Pump Head Product Code: 34903

Replacement Pump Head for Grunfos UPS2 Central Heating Pump (Code 42635).


  • 3 Speed Settings
  • ErP Compliant
  • 5 Year Manufacturer's Guarantee
  • 6m Max. Delivery Head
  • Q Max. Flow Volume
  • IP44
  • 3 Speed Settings
  • ErP Compliant


240V. 50/60Hz. Port to port distance: 130mm. Temperature range: 2 to 95°C. Weight: 1.8kg.
Additional Information
Technical Specification
  • Brand : Grundfos
  • Product Type : Pump Head
  • IP Rating : IP44
  • Central Heating Pump Product Type : Domestic Pumps
  • Total Product Weight : 1.8 kg
  • Model No : UPS2 15-50/60
  • Temperature Range : 2 to 95 °C
  • Pack Size : 1
  • Power Voltage Supply : 240 V
  • Manufacturer Guarantee : 5 Year Manufacturer's Guarantee (T&Cs Apply)
  • Pieces in Pack/Case : 1
  • Max Pump Head Size : 6 m
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

Was €154.95

Special Price €118.95

Incl. 23% VAT

Save €36.00 (23%)

Add to Wishlist

More Items to Consider

Loading... Loading...
Grundfos UPS2 15-50/60 Pump Head is rated 4.9 out of 5 by 10.
Rated 5 out of 5 by from Very good service The pump replaced a similar model that has worked well over the last 10 years or so. The old pump became noisy and whilst the upstairs radiators were fine, the downstairs ones were well below par. The new pump has cured everything - all the radiators are fine and the new pump is very quiet indeed. I changed it myself easily and being able to just change the pump head without disturbing the main plumbing connections made the change easy (though the gate valves either side of the pump didn't seal well so I had to do a partial system drain). The Click and Collect worked well and I appreciated being able to do this on a Sunday.
Date published: 2017-02-21
Rated 5 out of 5 by from Done the job At to replace pump on oil boiler as boiler kept overheating replace with the new pump boiler working fine now
Date published: 2017-01-21
Rated 5 out of 5 by from Good direct and quick replacem Our heating had not been good for some time-upstairs rads ok, downstairs hopeless. Typical of a failing pump. I added to this by descaling the system! Although the old pump seemed ok, this new pump has transformed the performance. Very easy to swap. 20 min job. Like the old pump, has 3 constant speed settings but is also capable of running according to demand if you wanted. Very happy and good not to have to buy the whole assembly.
Date published: 2016-12-13
Rated 4 out of 5 by from Grundfos pump head Needed new pump really handy that Grundfos supply the pump head only, for ease of change. Was impressed how easy they have made this right down to the easy access of the electric terminals. We all know how sometimes the simplest of jobs can get fraught because designers haven't thought it through. Well done grundfos engineers. Last pump working for at least ten years.
Date published: 2016-05-15
Rated 5 out of 5 by from Easy replacement The pump failed and tripped the fuse every time I reset it. Heating system had been noisy for a while and I suspected it was due to water hammer or even a radiator bung hitting the impeller (the latter as I'd previously found a bung INSIDE a radiator in the house where the installer was particularly lazy!) Turned out to be the pump as when I replaced it, literally 5 minute job with little spillage, the heating system is virtually silent. Hurrah! Easily worth the money!
Date published: 2016-03-09
Rated 5 out of 5 by from easy job to fit Old pump stopped working. Think it was at least 15 years old so didn't owe us anything. Screw fix had it in stock. Was fitted in 2 hours. Great job !
Date published: 2015-10-26
Rated 5 out of 5 by from Great pump head replacement Excellent industry standard pump head replacement. Although more expensive than some pumps, we always fit them as we are then confident of customer satisfaction and no call backs.
Date published: 2015-02-14
Rated 5 out of 5 by from Fantastic Response I ordered this pump quite late in the afternoon as my heating pump had suddenly ceased to function. The replacement arrived 11. a.m. the following day. What fantastic service is that? There is more than one company that could take a leaf out of Screwfix's book . The pump was great with masses of instructions making the job very easy to do. Well done all round :0)
Date published: 2014-11-06
  • y_2017, m_9, d_24, h_3
  • bvseo_bulk, prod_bvrr, vn_bulk_2.0.3
  • cp_1, bvpage1
  • co_hasreviews, tv_0, tr_10
  • loc_en_IE, sid_34903, prod, sort_[SortEntry(order=SUBMISSION_TIME, direction=DESCENDING)]
  • clientName_screwfix-ie