Bottle Silicone Inner Stopper Plugs Versatile Laboratory Stopper For Industrial Household Usage
Made of premium silicone rubber, this jar stopper boasts outstanding thermal stability to sustain high-pressure steam sterilization. Featuring reliable chemical resistance, the plug is durable, washable and reusable for long-term cyclic use. Designed with self-healing performance, it allows direct injection via hypodermic needles without detaching jar lids. Widely applied in mushroom cultivation, liquid culture production, grain spawn and substrate jars, it fits mason jar lids and medicine bottles to build sealed injection ports. Ideal for laboratory research, home mushroom planting and small industrial culture projects, it serves as an economical practical sealing accessory for diverse culture container applications.


















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