Jelmar CLR PRO Calcium, Lime & Rust Remover

Calcium, lime and rust remover features a powerful formula that quickly and easily dissolves and removes tough calcium and lime deposits as well as surface rust stains. The versatile formula can also be used to clean RVs and boats. Calcium, lime and rust remover is part of the EPA's Safer Choice Program recognizing the product as a safer alternative to chemicals. The fast-acting, powerful formula is septic-safe and contains no phosphates.