Organic Inhibitor OC300 is a highly concentrated, all-organic blend of corrosion inhibitors designed for use in closed chilled water or hot water systems containing ferrous and non-ferrous metals, including copper and brass. Not intended for systems that utilize Aluminum in the piping network.Compatible with propylene glycol or ethylene glycol. This product is a phosphonate/dispersant/buffer/azole blend that requires calcium hardness of at least 50 ppm to be fully effective.

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