What is the difference between the Total Hardness Test Kit, Model 5-B and 5-EP?
5-B and 5-EP hardness test kit comparison
The Total Hardness Test Kit, Model 5-B (Product # 145300) and Total Hardness Test Kit, Model 5-EP (Product # 145400) use the same reagents and have the same range for testing (1-30 gpg). The model 5-B test kit uses one spoonful of bulk UniVer® 3 Hardness Reagent (Product # 21320) and the model 5-EP kit uses one UniVer® 3 powder pillow (Product # 96299). The model 5-EP also includes a plastic protective case for the kit supplies and the model 5-B kit does not.