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Rangemaster TRS1 Tap Valve



Rangemaster TRS1 Tap Valve Hot or Cold

Please read below before ordering.

For valves stamped BO4 and or BS5412 CD XZ 20: : when this  new valve is fitted, there is a very small gap that can be seen at the handle.  Please check your own valve to the measurements below before ordering .


If your Tap is dripping from the Spout then you might need to change your Valves.  Here is our Guide 7 Easy Steps to replace Kitchen Tap Valve.


The Hot Valve opens Clockwise. The Cold Valve opens Anti-clockwise.




Rangemaster TRS1 Tap Valve Hot or Cold

This is a very old discontinued tap and the valves used in it back then are no longer available.  We have a version of that old valve, the 1212R with white seal, and have fitted this valve with mixed success.

Please check your own valve, even if 20 splines, to the details here (especially the nut height as if your own nut height is lower than 8mm, it is possible that the current 1212R valve would cause a gap between the handle and the black detail on your tap).  If not sure, then email us your own measurements plus picture of your own valve and whatever markings are on your own valve to sales@tapsandsinksonline.co.uk.

Here is our own valve measurements.

Valve Measurements
Overall height: 50mm
Nut Height: 8mm
Diameter at thread: 21mm
Splines: 20
Height of Splines: 8mm

Rangemaster Aquaclassic 2 TAC 2 (2004 to 2011) Valve 3984R - 20 Splines

1212R Valve Blueprint

1212R Valve Blueprint

This customer with valve markings San Marco D05 was left with this gap in picture below.

TRS1 Gap left in some earlier models with 1212R White

TRS1 Gap left in some earlier models with 1212R White

Another Customer with markings San Marco B04 on his valve said that due to gap, it didnt accomodate handle engagement with clip.

Another customer with markings San Marco D07 or B07? said it fitted fine.

This is a Genuine Spare Part.

Parts might be modified by the manufacturers as part of their continual improvements. We cannot always guarantee that a part will fit an older version of a product. All spare parts that do not fit can be returned for a refund excluding shipping costs.

Shipping Information:

We ship from Ireland. DPD have notified us that they are experiencing shipping delays in GB due to Brexit (Customs). They currently advise us that these delays are temporary. However, as per the Large Popup notice on our website that is there until you Dismiss it, you should allow a minimum of 1-2 weeks delays for your order to be cleared by customs. This backlog is due to the volume of goods now going to /from GB that have to go through Customs from January 1, 2021 due to Brexit. It is outside of our control. (There will be no extra or hidden charges with your order).

We intend that Brexit will have no financial impact on our customers.

For further details please see our Brexit section here.

Spares Parts: For Mainland GB / N.I and ROI, Minimum of £4.50 to maximum of £6.00 with DPD 2-3 working days (excluding the impact of Covid-19/Brexit Transition). Click here for more detailed information about all Shipping & Returns.

For UK Offshore Islands:

We apologise for any inconvenience but we are currently only shipping to England, Scotland, Wales, NI and ROI, excluding any Isles.

We are currently not shipping to Channel Islands, Isle of Man or any Isles.


Troubleshooting Guide

Troubleshooting Guide


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