ขนาดบรรจุ : 1000 pcs. (ไม่รวมฝา)
Internal Sealing Ring sandwiches the top of the tube to provide a positive seal to prevent liquid bypass. Continuous Threads require only a 1¼ turn to tighten. The O-ring provides exceptional chemical resistance while further enhancing the integrity of the seal. Polypropylene-copolymer caps and tubes are fully autoclavable (see autoclave guidelines under Reference). However, O-ringed caps are not autoclavable. Caps are compatible with Sarstedt and Porex.