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Waters Corp Needle Seal, Gauge 22, 10/pk
Supplier: Waters Corp 700002208
The Needle Seal is a short length of Teflon tubing which forms the seal around the syringe needle. A stainless steel ferrule is tightened around the Teflon sleeve to ensure a leak-proof fit.The valve needle seal must be replaced every 1500 to 2000 penetrations.
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