Biodegradable Air Filter Oil & Cleaner Kit

Keep your foam filter in like-new condition; Kit contains one 800g bottle of BIO Dirt Remover, and one 1L can of BIO Power filter oil; BIO Liquid Power filter oil was developed and produced by Texaco exclusively for Twin Air; exceeds the strictest standards on biodegradability by 16%; starts thin for deep, even penetration and dries to an even-coating, high-tack shield that traps dirt, dust and grit; BIO Dirt Remover cleans Liquid Bio Power oil by using granular detergents instead of solvents; water-soluble cleaner can go right down the drain without clogging the drain or harming the environment; will not harden or damage filter foam; Recommended for all foam filters