1. Product Overview
This document provides essential information and instructions for the BLANCO High-Pressure Tap Cartridge, model 117849. This cartridge is a replacement component designed for specific BLANCO high-pressure kitchen taps, ensuring proper water flow and temperature control. It features a 25mm diameter and is identified by its blue color.

Image 1: The BLANCO High-Pressure Tap Cartridge 117849, showing its blue body, white stem, and a top view indicating a 25mm diameter. This cartridge is a key component for controlling water flow and temperature in compatible BLANCO taps.
2. Compatibility
The BLANCO Cartridge 117849 is specifically designed for use with the following BLANCO high-pressure tap models. Please verify your tap's model number before proceeding with replacement.
- BLANCO ELOS ONE (517557)
- BLANCO ELOSCOPE-F DUO (ELOSCOPE-F II) (516672, 516673)
- BLANCO FELISA (520327, 520326, 520333, 520330, 520334, 520329, 521724, 520335, 520328, 520332, 520325, 520324)
- BLANCO FELISA-S (520339, 520338)
- BLANCO HOT (519064)
- BLANCO PERISCOPE-S-F II (from 01/2010 onwards) (516671)
- Also compatible with other models: 520341, 521725, 520347, 520340, 520344, 520337, 520336, 515989, 515988, 515987, 514604, 514605, 514603, 514607, 514608, 514606, 517186, 517185, 520401, 524813, 518290, 518293, 518292, 518299, 518297, 518807, 518296, 521732, 520758, 518298, 518294, 518295, 518300, 518291.
3. Specifications
Key technical details for the BLANCO Cartridge 117849:
| Feature | Detail |
|---|---|
| Part Number | 117849 |
| Cartridge Diameter | 25 mm |
| Color | Blue |
| Type | High-Pressure Tap Cartridge |
| Approximate Dimensions (L x W x H) | 24 x 25 x 8.5 cm (Product packaging dimensions) |

Image 2: A technical diagram illustrating the precise dimensions of the BLANCO Cartridge 117849. This includes measurements for overall height (45mm), stem height (25mm), base diameter (25mm), and internal component dimensions (19mm, 2.4mm, 2.9mm), crucial for ensuring correct fitment.
4. Installation (Cartridge Replacement)
Replacing a tap cartridge requires careful attention. If you are unsure about any step, it is recommended to consult a qualified plumber.
- Turn off Water Supply: Locate the main water shut-off valve for your kitchen or the specific tap and turn it off completely. Turn on the tap to drain any remaining water and relieve pressure.
- Access the Cartridge:
- Remove the decorative cap (if present) from the tap handle, usually revealing a screw.
- Unscrew and remove the tap handle.
- You may need to remove a retaining nut or collar that holds the cartridge in place. Use an appropriate wrench or spanner.
- Remove Old Cartridge: Carefully lift or pull out the old cartridge from its housing. Note its orientation for correct installation of the new one.
- Clean Housing: Clean any debris or mineral deposits from the cartridge housing within the tap body.
- Install New Cartridge: Insert the new BLANCO Cartridge 117849 into the tap body, ensuring it is correctly oriented and seated firmly. The alignment pins on the cartridge base must match the slots in the tap body.
- Secure Cartridge: Re-attach the retaining nut or collar and tighten it gently but firmly. Do not overtighten.
- Reassemble Tap: Re-attach the tap handle and secure it with its screw. Replace any decorative caps.
- Restore Water Supply: Slowly turn the main water supply back on. Check for any leaks around the tap base and handle.
- Test Tap: Operate the tap to check for proper water flow and temperature control.
5. Maintenance
To ensure the longevity and optimal performance of your BLANCO tap and cartridge:
- Regular Cleaning: Clean the exterior of your tap regularly with mild soap and water. Avoid abrasive cleaners or harsh chemicals that can damage the finish or internal components.
- Check for Leaks: Periodically inspect the tap for any signs of leaks. Early detection can prevent further damage.
- Water Quality: In areas with hard water, mineral deposits can accumulate over time. While cartridges are designed to be durable, extreme hard water may reduce their lifespan. Consider water softening solutions if this is a persistent issue.
6. Troubleshooting
Common issues related to tap cartridges and potential solutions:
- Leaking Tap: If the tap leaks from the spout or handle, the cartridge seals (O-rings) may be worn or damaged. Replacing the cartridge often resolves this. Ensure the cartridge is seated correctly and retaining nut is tightened.
- Dripping Tap: Similar to leaking, a constant drip usually indicates a faulty cartridge.
- Stiff Handle / Difficulty Turning: Mineral buildup or wear within the cartridge can make the handle difficult to operate. Replacement is typically required.
- Poor Water Flow: While less common for cartridges, severe mineral buildup inside the cartridge could restrict flow. Check aerator first, then consider cartridge replacement if flow issues persist.
- Temperature Control Issues: If the tap struggles to mix hot and cold water correctly, or only provides one temperature, the cartridge's mixing mechanism may be faulty.
If troubleshooting steps do not resolve the issue, it is advisable to contact a qualified plumber or BLANCO customer support.
7. Important Notes
Part Number Verification: Despite careful research, it is crucial to compare the spare part number (117849) and dimensions with your existing cartridge and tap model before purchase and installation. This ensures compatibility and avoids unnecessary returns.
Environmental Responsibility: To minimize environmental impact, please ensure the item fits your specific tap model before ordering. If you are uncertain, contact the seller for assistance.
8. Warranty and Support
For information regarding warranty coverage or technical support for BLANCO products, please refer to the official BLANCO website or contact their customer service directly. Keep your purchase receipt as proof of purchase.





