Grohe 1/2" Carbodur Ceramic Headwork (Cold – 1/4 Turn) — 45882000
The Grohe 45882000 is an authentic, original-equipment 1/2" (DN 15) Carbodur ceramic disc tap headwork valve engineered specifically for the cold water side of Grohe two-handle basin, bidet, bath, and kitchen mixer taps. Operating with a 90° (1/4 turn) rotation that closes clockwise, it features carbon-coated Carbodur ceramic discs that offer extreme resistance to friction, mineral scoring, and limescale buildup. If your cold tap is dripping from the spout, leaking past the spindle, or has become stiff or gritty to turn, this direct drop-in replacement restores effortless operation and a watertight seal.
Identification Guide:
MPN: 45882000 (also referenced as 45 882 000) | EAN / Barcode: 4005176132711 | Connection Size: 1/2" (DN 15) Thread | Operation: 90° (1/4 Turn) | Rotation: Cold side (clockwise closing, anticlockwise opening) | Spline: 15-tooth Grohe standard spline | Technology: Carbodur Carbon-Coated Ceramic Discs
Key Features
- Carbodur Ceramic Discs: Diamond-hard carbon-coated ceramic sliding discs ensure ultra-smooth 90° operation and resistance to abrasive grit.
- Cures Drips & Leaks: Stops persistent drips from the tap spout and water passing through when the tap is turned off.
- Cold-Side Specific: Factory configured for cold operation (rotates anticlockwise to open, clockwise to close).
- Solid DZR Brass Body: Precision-machined dezincification-resistant brass housing complete with factory rubber base washer and threaded O-ring.
- Genuine OEM Precision: Exact Grohe factory fit ensures proper handle indexing, correct alignment, and leak-free seating.
Installation Note
Always isolate the mains cold water feed before dismantling the tap. Remove the handle indice/cap, loosen the retaining screw, and pull off the tap handle and shroud to expose the headwork. Unscrew the old cartridge using a 17mm open-ended spanner or deep socket. Clean any limescale or debris from the internal brass tap seating before screwing in the new 45882000 cartridge. Tighten firmly to compress the bottom silicone seal, but avoid excessive overtightening. (Note: For the corresponding hot side cartridge with clockwise opening, the matching part number is 45883000).
Confirmed Model Compatibility
Designed for Grohe twin-handle monobloc, three-hole basin mixers, two-handle kitchen mixers, and concealed valve bodies utilizing 1/2" Carbodur 90° ceramic headparts:
- Grohe Atrio: Classic Atrio two-handle basin mixers, 3-hole basin mixers (20009000, 20010000), and bidet mixers requiring 1/2" Carbodur valves.
- Grohe Costa: Costa S and Costa L two-handle basin, pillar, and kitchen mixer taps (21040001, 21041001, 21255001, 31812001, 31831001).
- Grohe Sinfonia: Sinfonia 3-hole and two-handle basin/bath mixers (20011000, 25010000).
- Grohe Geneva & Somerset: Classic dual-handle collections specifying 1/2" 1/4-turn Carbodur cold headparts.
- Grohe Bridgeford & Parkfield: Dual-control two-handle kitchen mixers.
- Concealed Stop Valves & Rough-In Bodies: Grohe 1/2" concealed stop valves (29800000, 29801000, 29802000) and three-hole wall-mounted bodies specifying part 45882000.