Unlined polypropylene 38-400 screw caps with ribbed sides for easy gripping for 15 ml vials. Polypropylene offers good resistance to non-oxidizing acids and bases, fats and most organic solvents. Unlined polypropylene caps are sufficient for dry grinding a wide variety of sample types. The unlined polypropylene caps are autoclavable for sterilization.
Bag of 100.
Autoclavable.
