Geberit Type 380AG 3/8" Brass Concealed Cistern Fill Valve — 244.510.00.1
The Geberit 244.510.00.1 (Type 380AG) is the genuine replacement inlet float valve engineered for Geberit concealed cistern frames and Monolith modules. Equipped with a heavy-duty 3/8" BSP male brass connecting nipple and integrated Type AG backflow prevention, this valve offers ultra-quiet hydraulic filling and smooth water shut-off. This model directly replaces and supersedes the older Geberit 242.983.00.1 inlet valve assembly.
Identification Guide:
MPN: 244.510.00.1 (Internal Component Code: 244.595.00.1) | Replaces: 242.983.00.1 | Connection Size: 3/8" BSP Male Thread (approx. 16.6mm OD — not standard UK 1/2") | Thread Material: Solid Brass | Flow Pressure: 0.1–10 bar | Suitability: Geberit Sigma, Omega, Kappa Concealed Cisterns & Monolith Sanitary Modules.
Key Features
- Direct Supersession: Upgrades and replaces discontinued valve model 242.983.00.1 without alterations.
- Type AG Backflow Prevention: Engineered with a free outlet and built-in overflow gap to prevent potable water contamination.
- Solid Brass Connection: Cross-thread resistant 3/8" brass nipple ensures a robust connection to Geberit internal flexi-hoses.
- Adjustable Water Height: Smooth spindle adjustment allows exact calibration of the cistern water refill level.
- Low Noise Acoustic Group I: Acoustic-rated filling mechanism prevents water hammer and refill hissing.
- Rainwater / Greywater Ready: Tested and certified for use with filtered greywater/rainwater systems (pH 6.0–9.5).
Installation & Compatibility Advice
Important Thread Check: This valve features a European 3/8" BSP brass connection (approx. 16.6mm outer thread diameter), designed to connect directly to the internal Geberit braided hose or isolating valve inside concealed cisterns. It is not the standard UK domestic 1/2" thread (approx. 21mm OD). Installation is carried out entirely through the front flush plate aperture: isolate the integrated service stopcock, unscrew the 3/8" union nut, unclip the old valve from its mounting cradle, and secure the new 244.510.00.1 unit in place.