Description
San Marco Bridge Mixer Tap 3644R/1506R O Ring Kit
PINHOLE
- We always recommend that you should check your own Spout before ordering a new set of O Rings.
- This is important because if your spout has a pinhole (see example below), replacing the O-ring kit won't resolve the issue.
- If you have a pinhole you will need to replace the entire Spout'
- Here is our Guide : How to remove Kitchen Tap Spout so that you can check for pinholes.
- If you think that you have a pinhole, and do not know what Spout you need, then contact us with details of your tap, such as a picture and any other information (e.g., brand markings), so we can send you a link to the correct spout.
- Here is the example of a pinhole in a Spout.
Example Pinhole in Spout
Tip when changing the O Ring Kit :
- Usually, only the black O-rings need replacing unless one of the white O-rings is damaged.
- Some white O-rings have an intentional split for use in spouts with a grub screw, so a split does not indicate it is broken.
- Your new O-ring kit may include extra rings not needed for your spout, as some kits were later updated with a smaller ring for added stability.
- Use plumber's grease or washing-up liquid to aid movement, but avoid vaseline as it can damage the rubber.

- 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.
If your Tap is dripping from the Spout then you might need to replace your San Marco Bridge Mixer Tap Valve
Here is the link to all our San Marco Bridge Mixer Kitchen Tap Parts.
DIY Guides
- Here is our Guide: How to replace your O Ring Kit
- Here is our Guide: 7 easy steps to replace a valve
- Please see our plumbing guides and DIY Videos here
- Here is our Guide: Why is my tap dripping and how to identify the problem
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 in the long term. Plumbers often recommend replacing the entire tap when the right parts are unavailable or incorrectly ordered.
So for a smoother repair, just 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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