Grohe 13928000 Mousseur M22 x 1 (Replaces 45002000)

Summary

The fitting size for Grohe 13928000 Mousseur Aerator / Grohe Flow restrictor 13928000 (Grohe part number 13928000) is: Female thread M22 x 1. That means it screws into a M22 x 1 male threaded spout/tap outlet standard faucet aerator size on many Grohe basin and sink mixers.

Grohe 13928000 M22 x 1 Tap Aerator Mousseur

The Grohe 13928000 is an M22 x 1 threaded tap aerator designed to regulate water flow and improve outlet quality on compatible Grohe basin and kitchen taps. It replaces older aerator reference 45002000 and screws directly into the tap spout.

Function

This aerator mixes air into the water stream to create a smooth, controlled flow while reducing splashing. Over time limescale and debris can restrict the aerator, leading to uneven spray patterns or reduced flow.

Confirmed Compatibility

The aerator is intended for Grohe taps with an internal M22 x 1 female spout thread that originally used aerator code 45002000 or 13928000.

Installation Notes

The aerator can be removed using an aerator key or suitable tool. When fitting the replacement, ensure the sealing washer is seated correctly and tighten only enough to prevent leaks.

When Replacement Is Recommended

Replace the aerator if flow becomes irregular, spray direction is uneven, or water output is noticeably reduced. A new aerator restores smooth, controlled flow without replacing the tap.