SK4 Printhead Filter for Leibinger JET2 NEO / JET3 / JET3 UP — catalog reference ULB-E55-004478S-02. Supplied as a compatible replacement unless explicitly identified otherwise in the listing.Part identification and selectionSK4 printhead-filter application. Match the printhead generation, installed filter reference and fluid connections.Check before orderingMatch the installed filter reference, housing, fluid ports and ink or make-up application.Can I choose a filter by appearance alone?No. Match the circuit position and filtration requirements. If a micron rating is listed, confirm whether the required rating is nominal or absolute and whether seals are supplied.Request a fitment check or quotationAsk UPLIMARK about ULB-E55-004478S-02. Include the printer model, installed-part reference, label and connection photos, quantity and delivery country. We can review the required version and quote the requested items.See our compatibility and ordering guide for the details to prepare before ordering. Shipping & Notice Unless specifically stated as genuine OEM, this item is supplied as a compatible replacement product. Manufacturer names and trademarks are referenced only to identify equipment compatibility. Orders are normally processed within 3–5 business days. International delivery timing depends on destination, carrier service and customs clearance. Please confirm the printer model and current part number before ordering.