even with regular use

but also an overdue revolution in terms of toilet hygiene:

Signs of a necessary replacement are:

Chemical-resistant components for long durability

Yield when using HMK R171 Power-Gel 1l: approx

hmk r147 zementschleier ex 1 Sperrgut even with regular useProfessional Cleaning for Demanding Surfaces With HMK R147 Cement Film Remover, you get a powerful special cleaner that ensures thorough cleanliness on various surfaces. Whether after new construction, refurbishment, or renovation this acidic cleaner is ideally suited to remove cement film, limescale deposits, and stubborn construction dirt from porcelain stoneware, ceramic, or tile coverings. It does so without hydrochloric or phosphoric acid, making