Sealey-Ethylene-Glycol-Antifreeze-Pocket-Tester-Ball-Type-Sealey-AK4123-Convenient-pocket-sized-tester-for-ethylene-glycol-antifreeze-mixtures-Freeze-protection-level-is-indicated-by-the-number-of-coloured-balls-which-float-in-the-sample-Easy-to-read-temperature-table-on-the-body-Sealey-AK4123-Ethylene-Glycol-Antifreeze-Pocket-Tester-Ball-Type
