Flexsure’s dual solar tubing features two flexible stainless-steel tubes and sensor wire pre-insulated with elastomeric EPDM insulation with a UV-resistant covering. The tubing system connects supply and return lines between solar panels and a hot water storage tank. It comes in two standard lengths: 50’ and 75’; custom lengths are available upon request. The operating temperature ranges from -60º F to 300º. Available in three diameters and two insulation thicknesses.