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6404-250Teflon® stopcock plug and Standard Taper polyethylene stopper Stem length of 65 mm PYREX® borosilicate glass body
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6402-250Teflon® stopcock plug fits into the micro-finish barrel Plug reduces freezing problems and grease contamination
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29049F-250With Teflon ® stopcock plug Standard Taper ground neck has solid plug stopper of high-density polyethylene Designed for Federal Specification NNN-F-800
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29049F-250With Teflon ® stopcock plug Standard Taper ground neck has solid plug stopper of high-density polyethylene Designed for Federal Specification NNN-F-800
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6404-500Teflon® stopcock plug and Standard Taper polyethylene stopper Stem length of 65 mm PYREX® borosilicate glass body
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6400-500Glass stopcock and glass stopper Stem length of 65 mm
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6402-500Teflon® stopcock plug fits into the micro-finish barrel Plug reduces freezing problems and grease contamination
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6404-500Teflon® stopcock plug and Standard Taper polyethylene stopper Stem length of 65 mm PYREX® borosilicate glass body
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6400-500Glass stopcock and glass stopper Stem length of 65 mm
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6402-500Teflon® stopcock plug fits into the micro-finish barrel Plug reduces freezing problems and grease contamination
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29048-500With Standard Taper glass stopcock and Standard Taper glass stopper 60 mm long stem, which drains completely after stopcock is closed
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29048-500With Standard Taper glass stopcock and Standard Taper glass stopper 60 mm long stem, which drains completely after stopcock is closed