Silicone lined polypropylene 38-400 caps are designed specifically to meet the demands of homogenizing in 15 ml and 50 ml polycarbonate vials. The caps are lined with thick 3/32" silicone that withstands multiple uses, even when larger grinding balls are used. The caps firmly seal vials, preventing leakage as well. The caps can be used cryogenically or at room temperature without cracking.
These caps are designed for homogenization vials, but can be used with any 38-400 bottle or vial.
Caps are autoclavable and reusable. Bag of 100.