TubeGuard-XL is a revolutionary addition to your chiller tube cleaning job. This formulated tablet design is the best available technology for corrosion inhibition of copper and ferrous metal tubes.The TubeGuard-XL tablet is safe to handle, completely biodegradable and designed with environmentally friendly chemicals. Specifically designed to work with the all new RAM-PRO-XL, this breakthrough tube cleaning process will forever change the ease and effectiveness of both, eliminating bio-film and preventing corrosion. No measuring, or dosing of chemicals is required. The TubeGuard-XL tablet simply dissolves in the RAM-PRO-XL's on-board reservoir during tube cleaning; flushing the tubes in EPA certified bio-film removal compounds.