Grohe 47751000 Adapter for Aquadimmer 12433000 Cartridges

Summary

GROHE 47751000 Waterway Adapter for 12433000 Aquadimmer Bath and Shower Cartridges

The GROHE 47751000 is an internal waterway adapter for the 12433000 Aquadimmer cartridge in selected thermostatic bath/shower mixers and shower systems. It sits inside the mixer body, behind the Aquadimmer, and is supplied as a separate component from the flow and diverter cartridge.

The adapter forms part of the flow-control waterway, with four external O-rings sealing it within the valve housing. The Aquadimmer cartridge controls water flow and outlet selection; the 47751000 adapter is not a thermostatic cartridge and does not regulate the mixed-water temperature.

Technical Details

• Supplied as the adapter with its O-rings; the Aquadimmer cartridge and thermostatic cartridge are separate components

Before Ordering

Check the exact mixer or shower-system code, its production version and the existing internal assembly. The presence of a 12433000 Aquadimmer cartridge alone does not establish that your mixer uses this adapter. Compare the old component and the model-specific parts diagram before ordering.

Confirmed Compatible Models

• GROHE 34174000 Grohtherm 2000 Thermostatic Bath/Shower Mixer
• GROHE 34 175 Grohtherm 2000 Thermostatic Bath/Shower Mixer, legacy model reference
• GROHE 34 176 Grohtherm 2000 Thermostatic Bath/Shower Mixer, legacy model reference
• GROHE 34185000 Grohtherm 3000 Thermostatic Bath/Shower Mixer
• GROHE 34 186 Grohtherm 3000 Thermostatic Bath/Shower Mixer, legacy model reference
• GROHE 34 187 Grohtherm 3000 Thermostatic Bath/Shower Mixer, legacy model reference
• GROHE 34188000 Grohtherm 3000 Thermostatic Bath/Shower Mixer
• GROHE 34176001 Grohtherm 2000 Thermostatic Bath Mixer
• GROHE 34466001 Grohtherm 2000 Thermostatic Bath Mixer
• GROHE 34276000 Grohtherm 3000 Cosmopolitan Thermostatic Bath Mixer
• GROHE 34227002 Precision Trend Thermostatic Bath Mixer
• GROHE 34816003 Grohtherm 1000 Thermostatic Bath Mixer
• GROHE 34831000 Grohtherm 1000 Performance Thermostatic Bath Mixer
• GROHE 34833000 Grohtherm 1000 Performance Thermostatic Bath/Shower Mixer
• GROHE 26087000 Euphoria Cube System 230 / Euphoria XXL Thermostatic Shower System
• GROHE 27296001 Euphoria System 180 Thermostatic Shower System
• GROHE 26363000 Euphoria System 210 Thermostatic Shower System
• GROHE 27964000 Euphoria System 210 Thermostatic Shower System
• GROHE 27296002 Euphoria System 260 Thermostatic Shower System
• GROHE 27932000 Euphoria System 150 Thermostatic Shower System, July 2017 version
• GROHE 26128000 Euphoria System 180 Thermostatic Shower System
• GROHE 26128001 Euphoria System 260 Thermostatic Shower System
• GROHE 26128EN1 Euphoria System 260 Thermostatic Shower System
• GROHE 26419000 Euphoria Thermostatic Shower System
• GROHE 26419EN0 Euphoria Thermostatic Shower System
• GROHE 26420000 Thermostatic Shower System
• GROHE 27922000 Tempesta Cosmopolitan System 160 Thermostatic Shower System
• GROHE 27922001 Tempesta Cosmopolitan System 210 Thermostatic Shower System
• GROHE 26421000 Tempesta Thermostatic Shower System
• GROHE 26657000 Rainshower SmartActive 310 Shower System with Bath Thermostat

The legacy model references above identify the original mixer versions, not every later product carrying the same range name. For 27932000, match the July 2017 parts arrangement rather than assuming that an earlier version uses the same adapter.

Fault Checking

• Symptom: water continues dripping from the shower head or bath spout when the flow control is fully turned off
• Likely cause: a fault in the flow-control assembly, which may involve the Aquadimmer cartridge, its seal, or a damaged adapter and its O-rings
• Solution: inspect the cartridge, adapter and sealing surfaces, then replace the component responsible for the fault; replacing the adapter alone will not repair a worn Aquadimmer cartridge

Fitting Notes

Isolate both hot and cold water supplies before dismantling the mixer. Follow the service instructions for the exact model, inspect and clean the accessible components, and refit the adapter in the correct orientation without damaging its seals or the valve housing. Use the lubricant specified for the installation. The thermostatic cartridge is a separate assembly; its retaining-ring tool should not be treated as an adapter extraction tool.

Related Spares You May Need

The cartridge, cartridge seal and combined assembly below relate to the Aquadimmer arrangement. The thermostatic components and retaining-ring tool are model-dependent options for wider mixer servicing, not parts that must automatically be replaced with this adapter.

• GROHE 12433000 Aquadimmer Flow and Diverter Cartridge, the separate cartridge fitted in front of the 47751000 adapter
• GROHE 49348000 Aquadimmer Cartridge and Adapter Assembly, containing both the 12433000 cartridge and 47751000 adapter; choose the combined assembly when both components are required, rather than ordering the adapter twice
• GROHE 0305600M Aquadimmer Cartridge O-Ring, a separate cartridge seal, not a set of the adapter's four external O-rings
• GROHE 47439000 Thermostatic Cartridge, for the temperature-control side of specified mixers; check the exact model before ordering
• GROHE 47885000 Thermostatic Cartridge, used on the temperature-control side of other specified models; do not assume it is interchangeable with 47439000
• GROHE 47743000 Thermostatic Cartridge Retaining Ring, for the relevant temperature-control assembly, not the 47751000 adapter
• GROHE 19332000 34mm Hex Socket Box Spanner, for the applicable thermostatic cartridge retaining-ring arrangement, not for extracting the waterway adapter
• TACSIL 3g Premium Cartridge Silicone Grease - WRAS Approved, for cartridge and O-ring servicing where permitted by the mixer manufacturer's instructions

For help identifying the correct part, contact us with the mixer model code and clear photographs of the existing cartridge, adapter and complete shower or bath mixer.