Ultrafryer 20A021 Stera-sheen Red Label Fryer & Filter Cleaner, Sold 24 Packets Per Case Ea Packet 6 Oz., Non-caustic. Cleans & Removes Oils Fats Carbon Calcium, Rust And Burned-on Grease. Recommended For Fryers Filters, Popcorn Kettles And Vent Hoods., Non-caustic Formula Safely Cleans The Most Difficult, Jobs In One Easy Operation Saving Hours Of Maintenance., Strong Alkali Ingredients Dissolve Difficult Oil And Grease, Quickly., Black Metal Marks Are Easily Removed From Ceramic Plates., Versatile & Economical – After Cleaning Fryers And Baskets, Reuse The Same Potent Stera-sheen Red Label Cleaning, Solution To Soak/clean The Exhaust Fan Filters.