Description
San Marco Bridge Mixer Kitchen Tap Valve
- Height 65mm
- Diameter at thread 21mm
- Splines 24
- Nut Height 5mm
Valve Update Notice:
Please note that the manufacturer has updated this Valve over the years the Tap has been in production.
While both the Old and New Valves have 24 splines, the New Valve features thinner splines that are not compatible with the Old Handle.
If you have the Old Valve, the New Valve will not fit your existing Handle, and you’ll need to order the New Handle 3715R as well.
You can identify which version you have by removing your Valve and comparing it to the image shown.
A key difference is the Nut—the New Valve has a ‘stepped’ Nut.
Some older installation guides refer to the Old Valve as 1301R, while even later guides listing 3656R may still refer to the older style.
If the Kitchen Tap Valve does not fit you can return it. Full details of our Returns policy is here. If in doubt as to which Valve is in your own Tap, then we would recommend that you purchase the handle and return if not required.
Here is the link to all our San Marco Bridge Mixer Kitchen Tap Parts.

- 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.
DIY Guides
- Here is our Guide 7 Easy Steps to replace Kitchen Tap Valve.
- Please see our plumbing guides and DIY Videos here.
After Sales Support
With over 30 years of experience, our Sales Team provides expert after-sales support for all Kitchen Tap issues.
Addressing problems early—like a small drip—can prevent costly damage. Plumbers often recommend replacing the entire tap when the right parts are unavailable or incorrectly ordered.
For a smoother repair, contact us first. We’ll ensure you get the correct part, so your Plumber has everything needed to fix it right the first time.
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