Description
Franke Cresta Tap O Ring Kit 3725R

Franke Cresta Tap Parts
As there are a lot of O Rings in this Tap it might be useful to take a picture of your spout before you remove the existing ones so that you can replicate.
DIY Guide
You will need a 3mm size allen key to remove the grub screw in your spout.
As per diagram above (parts listed as ‘3’), the order of the rings are from top down :
- Large white
- First black of same size.
- 2nd black ring of same size
- Castellated white (turrets facing downwards)
- Larger black
Use plumbers grease / silicone grease . Do not use vaseline.
Here is our Guide: How to change a Kitchen Tap O Ring Kit Guide. :
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.
- 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 Franke Cresta Tap is dripping from the Spout then you might need to replace the Franke Cresta Kitchen Tap Valves.
Here is the link to all our Franke Cresta Kitchen Tap Parts.
Genuine Franke Cresta Tap Spares available here
We also advise on what part is needed to save you time & money, even for older models. By fixing your Franke Tap with Genuine Franke Cresta Tap Spares you prolong the life of your Franke quality product.
All the Parts you need available here
We sell from the smallest Grub screw, to Valves, Cartridges, O Ring Kits, Spouts & Handles. When you purchase Genuine Franke Tap Spares from us you can email us after you have bought it for further advice. Troubleshooting guides and DIY guides to fit all the Franke Tap Spares are linked to the parts online. We also have a Help Section here for the most common queries.
After Sales Service
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 effect 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.
If you wish to fix the Tap yourself we provide DIY Guides on all our Franke Tap Spares to assist you.
Valve:Tap dripping from the Spout ? Guide to changing Valve here.
Brass Bush: Part surrounding the valve. More info here.
O Rings: Tap dripping where the spout meets the base of the Tap? Guide here.
Aerator: Found at the tip of the spout. Here is our Guide How to Remove your Aerator / Antisplash from your Kitchen Tap.
We supply the full range of Genuine Franke Tap spares across the UK.
Ian Gates –
The o ring kit has 6 items. 1. Grub screw. 2. 2 white collars. 3. 2 black rubber o rings. 4. Slightly larger o ring.
The exploded view shows only 5 of these items.
I suspect that the larger o ring sits beneath the castilated white ring. However I couldn’t refit the spout with it there. I left it out. I couldn’t find any comprehensive instructions for the Cresta tap. Has anyone else had this problem?
Alice F –
Thanks Ian for your feedback and the additional information you sent me when you refitted them (much appreciated) and have also included a blueprint now too. The imnage has been updated to include the grub screw. I reached out to other customers that had also purchased this kit recently and one customer had difficulty getting the spout back in. Silicone grease / plumbers grease made it a bit easier.