Description
Rangemaster Aquatrend TRE1BL Tap Valve
Measurements of this 28/8 Valve with thread:
- Nut Height: 8mm
- Splines: 28
- Overall Height: 53mm
- Diameter at thread: 21mm
Due to modifications in this Tap by the manufacturer over the years, we supply the original white sealed version of this valve (larger seal underneath). We use code 4276R to distinguish from later valve used in the Tap which has a coloured flatter seal. This is a genuine Spare Part. Parts are labelled Hot & Cold. If opened and you cannot tell apart, as both Hot & Cold Valves have white seals underneath: the Hot valve opens Clockwise and has nicks on the side of the nut. The Cold Valve opens Anticlockwise and has no nicks.
If your Tap is dripping where the Spout meets the base then you might have to replace the Rangemaster Aquatrend TRE1BL Tap O Ring Kit.
Click here for a link to all our Rangemaster Aquatrend TRE1BL Tap Spare Parts.
NB Please look at pictures of Valve shown with and without the Brass Bush attached before purchase. The Brass Bush is sold as a separate item as it is not always needed.
Useful Tip
It can be a common enough problem that when you remove your Valve it looks different than the valve in the picture. It is most likely because the brass bush is still attached.
For tips on how to separate a Valve from a Brass Bush, see here.

3561R Valve surrounded by Brass Bush 3868R
Rangemaster Aquatrend TRE1BL Tap FAQ
- Is this a Genuine Rangemaster Tap part ? Yes it is.
- How do I know which Valve to order? You need to determine where the drip is coming from e.g cold water feed or hot water feed. If in doubt, order a pair. There are more detailed tips / advice here. This Blog post My Kitchen Tap is dripping should explain the most common causes (and parts required) to fix a dripping Kitchen Tap.
- How do I access the Valve? You need a 2mm allen key to loosen the grub screw underneath the handle. See below for our DIY Guides.
- My tap is leaking at the base of the spout, not the top, what do I need? If your Tap is dripping where the Spout meets the Base then you need to replace your O Ring Kit.
DIY Guides
- Here is our Guide: How to remove the Handle on your Kitchen Tap
- Here is our Guide: 7 easy steps to replace a valve
- Here is our Guide: How to replace your O Ring Kit
- Here is our General Troubleshooting Guide: UK Kitchen Taps Troubleshooting Guide
- Here is our Guide: How to Remove your Aerator / Antisplash from your Kitchen Tap
- Here is our Guide: What are the Splines on Tap Valve
- Here is our Guide: How to remove a Brass Bush from Valve
- Here is our Guide: How to remove Kitchen Tap Spout

- Genuine = Proper fit, tested by the Manufacturer
- Compatible = Not made by your Tap’s brand. May not fit or last.
We’ve seen compatible parts cause leaks or damage. Choosing genuine parts protects your tap and warranty.
Detailed Shipping / Returns information can be found here.
In Brief:
- Small items only by Post: £3.50. Can take currently up to 7-10 working days.
- Courier Delivery DPD Track & Trace: £5.50. Usually takes c. 2-3 working days. Please make sure to provide mobile number for DPD to text you regarding your delivery.
- BREXIT: No additional charges on delivery once your Order before shipping charges is less than £135.
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