Flipper (2 Pack) Stainless Steel Replacment Blades Glass - Flipper $15.99 2 Pack - Replacement Blades The Flipper can be used on glass or acrylic tanks up to 12mm (1/2") thickness.Flipper's patented design creates the only aquarium cleaner that can FLIP from scrubber to scraper simply by rotating the handle.Complete cleaning... Add to Cart