Two-Position Snap Caps, For 17 mm PP Test Tubes, Sterile, LDPE, Natural — 222-3817-02P | 1000/Bag | Caplugs® Evergreen

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Sterile Two-Position Snap Caps for 17 mm PP Test Tubes — LDPE, Natural, 1000/Bag (222-3817-02P) These sterile Low-Density Polyethylene (LDPE) snap caps are designed for 17 mm outer -diameter polypropylene test tubes, offering two functional positions — vented (partially open) for gas exchange and fully closed for sealed storage or transport. Supplied in bulk at 1000 caps per bag, part number 222-3817-02P is ideal for high-throughput laboratories that need a reliable, cost-effective sterile closure for round-bottom PP tubes. The natural (translucent) color allows quick visual inspection of tube contents without removing the cap. Technical Specifications Specification Value Part Number (MPN) 222-3817-02P Cap Material Low-Density Polyethylene (LDPE) Color Natural (translucent) Compatible Tube Diameter 17 mm OD Compatible Tube Material Polypropylene (PP) Cap Positions Position 1: Vented (partial open); Position 2: Fully closed Sterility Sterile Pack Size 1000/Bag BPA / Phthalate / Latex BPA-Free, Phthalate-Free, Latex-Free Country of Origin USA Applications Cell culture in 17 mm PP tubes — use the vented position during CO₂ incubation for gas exchange, then switch to fully closed for transport or storage Centrifugation with pressure equalization — vented position allows pressure relief during centrifuge spins, reducing the risk of cap ejection or tube deformation Serology and agglutination panels — snap cap re-seals securely after reading so tubes can be returned to incubation Flow cytometry sample preparation — vented during antibody staining incubation steps, closed for instrument loading and aerosol containment Bulk tube assembly and replacement cap inventory — the 1000/Bag format supports high daily cap consumption in clinical and research settings General bench capping — instant snap-on closure for routine sample storage and handling in 17 mm PP round-bottom tubes Chemical Resistance Reagent / Condition Compatibility Aqueous buffers / saline Excellent Cell culture media Excellent Dilute acids and bases Good Ethanol ( Show more