GripSeal caps are completely unique to the screw cap tube industry and provide the safest, most secure seal on the market. The seal is actually molded into the cap, eliminating the need for an o-ring. Additionally, the same durable material (inert TPE) provides built in grips on the exterior of caps, making opening and closing tubes effortless.
Compatible with all SSI microtubes, GripSeal caps feature contrasting color strips on white or clear caps and are available in a wide variety of colors.