GripSeal Caps

GripSeal Caps with Molded O-Ring & Rubber Ribbing

• Made from ultra-pure polypropylene (meets FDA 21 CFR 177.1520 & USP Class VI) with an inert TPE O-ring molded directly into the cap.
• O-ring is securely bonded—can't fall out!
• No contamination from outsourced materials or handling.
• No possibility of double O-rings.
• Provides the safest, most secure leak-proof microtube seal on the market.
• Rubber ribs on cap allow for effortless opening and closing—even when frozen.
• Contrasting color stripes enable easy branding or organization.
• Easy 3⁄4 turn to open and close.
• Easy labeling surface.