100 Pcs Self-Sealing Injection Ports for Jar Lids, 7mm (1/4 in) Hole

100 Pcs Self-Sealing Injection Ports for Jar Lids, 7mm (1/4 in) Hole

• Sample Without Opening The Jar: A needle passes straight through these liquid culture lids and the port reseals behind the tip, so you can draw from the same sealed jar repeatedly without ever lifting the lid.
• Butyl Rubber With An Inert Face: An inert coating over dense rubber gives the rubber stoppers a surface that keeps its shape through repeated needle passes rather than tearing or pushing through.
• Add A Clean Injection Point: The lid stoppers give a tidy spot to push a needle through, while the slim, low-profile body sits flush against the lid so nothing snags when you handle the jar one-handed.
• Built For Lab And Mycology Work: Whether on a grow shelf or a lab bench, the rubber stopper fits standard glassware and slots right in with the culture and lab gear you already keep on hand.
• 100 Pcs In The Box: The set brings 100 reseal caps at about 0.27 inches across, each seating snugly in a 7 mm or 1/4 inch hole so they drop in flush without shimming or forcing them into place.