eStain L1C Staining Kit (Cat No: L00753) contains reagents that are used with eStain L1 protein staining device (L00657). Each kit contains 1 x 2L of staining solution, 1 x 2L of destaining solution, and a pack of filter paper (50pK). What’s the difference between L00659-1 and L00753? L00659-1 and L00753 fuction similar to each other but contain different ingredients. Ingredients in L00753 are more concentrated, have lower flammability, safer to use, easier to store and transport, and costs less compared to L00659-1.