High quality: All of our products are guaranted to meet our published specifications Cost saving: Reduce substantially the customers cost without sacrificing quality. Compehensive: Compehensive product lines,; including some very unique products Important features: All filter's housing is made of high purity polypropylene; Female luer-lock inlets on all filters secure the fit to syringes; All filters are designed for use in both direction; All filter's are autoclavable; All products are certified.