Description
San Marco Siena Tap O Ring Kit SP3891
This O Ring kit can also be shown as 3891R or as 133.0319.664 on your installation guide – it is the same part.
O Rings: If your Tap is leaking at the joint of the body of the tap and the spout then you might need to replace your O-rings. See our Guide here.
PINHOLE
Please note that if you have a pinhole in your spout, replacing the O Ring Kit will not fix this. You will need to replace the Spout. Check your spout before ordering O Ring Kit. Where you purchase O Ring Kit and it turns out that you have pinholes and purchase subsequently a New Spout from us, we discount the cost of O Ring Kit off New Spout Cost.

Example Pinhole in Spout
Our Sales Team is available for excellent after sales service. We have been supplying Kitchen Taps for over 30 years and accordingly can troubleshoot any issue with a Kitchen Tap. The most effective way to maintain your Kitchen Tap is to fix any issue as it arises. If you ignore a drip it can affect the inner workings of your Tap. It might result in the drip being beyond repair. Often Plumbers advise to replace the Tap. They do this because customers purchase the wrong part or the exact part is hard to source. But not if you contact us. If you contact us before buying, we will advise you on the correct part for your Tap. That way, if you are calling in a Plumber to fix your Tap, all the correct parts will be there for the Plumber to fix your Tap.

- 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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