About this item

• Single-Hole Port: precision-molded single-bore silicone stopper providing a sealed feed-through for tubing, probes, or glass joints in laboratory setups
• Broad Equipment Fit: engineered to fit a range of lab openings to reduce leakage and axial movement
• Chemical & Corrosion Resistance: silicone formulation resists corrosion and degradation from common laboratory reagents, preserving seal performance
• Reusable, Long-Life Material: resilient silicone construction tolerates repeated installation and routine bench handling for extended service life
• 5-Unit Pack: economical box of 5 stoppers suitable for laboratory benches, teaching labs, and routine experimental workflows