Russo Super H Large Sponge: Tile Grout Clean Up - Tile for Less Utah

Best sponge for grout clean up during tile installation. Tile cleaning sponge in XL size makes cleaning tile easier
It's a sponge.  A really good sponge. Enough said.

QEP XL All-purpose sponge : Health & Household

Super-H Large Grout Cleaning Sponge: Superior Water Holding

Made with a unique cell structure that wipes and rinses excess grout and concrete faster, our heavy duty grouting and concrete sponge is shaped with rounded edges to minimize digging out or scoring of grout lines. This six-pack is a convenient way to buy in bulk and keep extra sponges on hand. Made in the USA.

Armaly Proplus Proplus Polyurethane Grout Sponge in Yellow | 72633

Hydra XL Tile Grout Sponge TXL

Shop Grout Cleaning Tools for Effective Jobsite Cleanup — TileTools

LAU 4x10 Maiolica Pattern Aqua Subway Wall Tile - Tile for Less Utah

Russo Super H Large Sponge: Tile Grout Clean Up - Tile for Less Utah

Foaming formula -- foaming formula works fast to break down the toughest grout stains caused by mold, mildew, soap scum, and hard water Tile cleaner

Goo Gone Cleaner, Foaming Formula, Fast-Acting, Citrus Power, Works on Unsealed Grout & Tile – 6 Pack

Grout & Tile Cleaner

Goo Gone Grout & Tile Cleaner - 28 Ounce - Removes

XL Grout Sponge - Rocket Supply - Stone, Tile & Concrete Supply Denver