Sealing cap assemblies Typ DS 3131, PP PP screw cap with Tefzel® ETFE plug liner and viton O-ring. Leak-proof at recommended maximum speed and rcf for tubes. Suitable for working with aggressive chemicals. The 38mm assembly has a PP shoulder reinforcement ring to prevent collapsing of the 250ml bottles.
Product Specification: Product Type: DS3131 For tubes: 30ml Screw cap diam.: 20mm
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