Unlined polypropylene 15-425 screw caps with ribbed sides for easy gripping for 4 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 240.
Autoclavable.
