stonylab PTFE Magnetic Stirrer Stopper, 24# Plug with 7 mm Shaft Hole, Bearing Adapter for Laboratory Mixing and Stirring Equipment, 1 Pack

Designed to pair with stirring shafts for efficient solution mixing and can also accommodate a thermometer, providing stable support during routine laboratory procedures Made from premium PTFE with excellent stability and long service life; integrated O-ring ensures reliable sealing and maintains system integrity Supplied as 1 pack in standard 24# size, compatible with common laboratory glassware joints for firm installation and dependable sealing performance Engineered for 7 mm outer diameter stirring shafts, allowing smooth insertion and tight alignment to keep the shaft centered and reduce wobbling during rotation PTFE material offers strong thermal resistance, suitable for typical laboratory heating or cooling conditions without deformation or premature aging