Description
Replacement capillary for holder 718966 with 0,18 mm internal diameter is a specialised steel spare capillary intended for the Column Protection System guard column holder (REF 718966). The part is supplied complete with connection screw and metal ferrule, allowing secure installation when the original capillary must be exchanged. An internal diameter of 0,18 mm supports precise fluid paths in analytical chromatography setups that use this guard-column protection hardware. Packaged as three pieces per pack, the capillary is a practical consumable for laboratories that maintain Column Protection System holders in routine HPLC and related workflows. Manufactured by Macherey-Nagel, the steel construction is suited to repeated connection cycles in laboratory practice. Replacing only the capillary keeps the holder assembly in service and helps preserve system continuity without unnecessary hardware changeover. This accessory fits laboratories stocking dedicated spares for column-protection accessories and related chromatography infrastructure, where matching geometry and connection hardware are essential for reliable reassembly.
This article is part of HPLC fittings, tubing & inline filters, in HPLC columns & accessories.
Key features
- Pack size: 3 pc(s)
- Product type: Replacement capillary for Column Protection System holder
- Internal diameter: 0,18 mm
- Material: Steel capillary with connection screw and metal ferrule
- Compatible holder: REF 718966
- EAN: 4046681083419
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Questions about Replacement capill.f.holder718966,0.18mm
What is this article?
Replacement capill.f.holder718966,0.18mm is the article on this page. Luminix Health distributes Macherey-Nagel for laboratory use. It sits in HPLC fittings, tubing & inline filters, inside HPLC columns & accessories, in Chromatography equipment.
HPLC fittings and tubing are numbered by bore. A wide bore after the column broadens the peaks. Finger-tight and wrench fittings, and stainless against PEEK, are different pressure ratings. An inline filter is the last screen before the column, and it clogs on purpose so the column does not.
An HPLC column is a tube packed, or coated, with a stationary phase. The sample is carried through it by a liquid, and the compounds leave at different times. The phase, the particle size, the length and the internal diameter decide the separation. A guard column is a short sacrificial piece in front of the analytical column. Fittings and tubing have a bore that either preserves the peak or smears it. Compound names follow IUPAC. Data are on PubChem. Method grades often cite the European Pharmacopoeia or USP.
Which category should I open next?
The category is HPLC columns & accessories. The sub-category is HPLC fittings, tubing & inline filters. The catalogue is Chromatography equipment.
Shelves beside this one are HPLC columns, HPLC guard columns and HPLC accessories.
What should I check before I order?
When this page shows a safety data sheet, use that manufacturer file. Hazard text does not belong in the sales description. For a pack size, a grade or a certificate that is not on the page, send a quote request or contact the team.
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Luminix Health distributes this article from the heart of Europe. Articles in stock ship within 2–5 business days. Standard delivery is free from €250 excl. VAT. Cold-chain goods and dangerous goods under ADR are never included in that free delivery. The terms are in the Shipping Policy. The full brand index is on shop by brand. Who we are is on about us.
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The seven catalogues are Labware, Lab chemicals, Lab instruments, Lab consumables, Chromatography equipment, Lab safety equipment and Life Science & Microbiology.

