Spectrum 142836 Green Spectra/Por Standard Dialysis Tubing Closure, 35 mm (Pack of 10) by Spectrum at Dupen Labs. MPN: 142836. Hurry! Limited time offer. Offer valid only while supplies last. Since Spectra/Por standard closures float, they aid in buoyancy and vertical orientation when applied to the tubing top end.Autoclavable. Available in a variety of colors for easy sample identification. For use with Spectra/Por standard regenerated cellulose membranes only.
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