H-B DURAC Safety 29/41 Degree API Combined Form Thermo-HydrometerThese combined-form hydrometers, with a convenient, built-in thermometer, come in a wide range of models measuring the relative density (specific gravity) of oil and petroleum related products in various ranges from -1° to 101°API in a..
H-B DURAC Safety 39/51 Degree API Combined Form Thermo-HydrometerThese combined-form hydrometers, with a convenient, built-in thermometer, come in a wide range of models measuring the relative density (specific gravity) of oil and petroleum related products in various ranges from -1° to 101°API in a..
H-B DURAC Safety 49/61 Degree API Combined Form Thermo-HydrometerThese combined-form hydrometers, with a convenient, built-in thermometer, come in a wide range of models measuring the relative density (specific gravity) of oil and petroleum related products in various ranges from -1° to 101°API in a..
H-B DURAC Safety 59/71 Degree API Combined Form Thermo-HydrometerThese combined-form hydrometers, with a convenient, built-in thermometer, come in a wide range of models measuring the relative density (specific gravity) of oil and petroleum related products in various ranges from -1° to 101°API in a..
H-B DURAC Safety 69/81 Degree API Combined Form Thermo-HydrometerThese combined-form hydrometers, with a convenient, built-in thermometer, come in a wide range of models measuring the relative density (specific gravity) of oil and petroleum related products in various ranges from -1° to 101°API in a..
H-B DURAC Safety 79/91 Degree API Combined Form Thermo-HydrometerThese combined-form hydrometers, with a convenient, built-in thermometer, come in a wide range of models measuring the relative density (specific gravity) of oil and petroleum related products in various ranges from -1° to 101°API in a..
H-B DURAC Safety 89/101 Degree API Combined Form Thermo-HydrometerThese combined-form hydrometers, with a convenient, built-in thermometer, come in a wide range of models measuring the relative density (specific gravity) of oil and petroleum related products in various ranges from -1° to 101°API in ..
H-B DURAC Safety 9/21 Degree API Combined Form Thermo-HydrometerThese combined-form hydrometers, with a convenient, built-in thermometer, come in a wide range of models measuring the relative density (specific gravity) of oil and petroleum related products in various ranges from -1° to 101°API in ac..