Ensures accurate determination of % propylene-glycol at any temperature, and indicates the amount of undiluted anti-freeze to add to obtain the correct degree of frost protection. Ministry ref. H6/HF 10997.
Ensures accurate determination of % propylene-glycol at any temperature, and indicates the amount of undiluted anti-freeze to add to obtain the correct degree of frost protection. Ministry ref. H6/HF 10997.