Based on this product's specifications, here are some alternatives and similar models
Liquid tombstone cleaner Ludwik 270 ml – concentrated cleaning solution for gravestones
Summary description:
Liquid tombstone cleaner Ludwik, 270 ml bottle, formulated for cleaning gravestones and memorial surfaces. This concentrated cleaning solution removes dirt, grime and common residues from stone, metal and ceramic memorial elements. Suitable for periodic maintenance of cemeteries, family gravesites and restoration work where targeted, small‑volume application is needed.