{"product_id":"monteverde-usa-standard-international-ink-mixer-piston-converter","title":"Monteverde USA Standard International Ink Mixer Piston Converter","description":"\u003cp\u003eUnlock an endless variety of bottled fountain pen inks with the Monteverde Ink Mixer Converter. Featuring an intuitive twist-action piston mechanism, this converter makes filling effortless. Simply turn the top knob to operate the internal piston and draw ink directly into the reservoir. Inside the clear chamber, a built-in agitator bead actively prevents ink from clinging to the walls, maintaining smooth, consistent flow to your nib. Designed in a Standard International Long size to replace disposable cartridges, this durable plastic and metal converter is an essential, reusable upgrade for your favorite fountain pens.\u003c\/p\u003e\n\n\u003cp\u003eMonteverde USA Standard International Ink Mixer Piston Converter Specifications\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eInk Capacity: 0.3 ml\u003c\/li\u003e\n\u003cli\u003eCartridge Size: Standard international long\u003c\/li\u003e\n\u003cli\u003eFilling Mechanism: Twist Piston\u003c\/li\u003e\n\u003cli\u003eMaterial: Metal and plastic\u003c\/li\u003e\n\u003cli\u003eColor: Clear reservoir with black accents\u003c\/li\u003e\n\u003cli\u003eInternal agitator bead for consistent ink flow\u003c\/li\u003e\n\u003cli\u003eLength: 2.6 in. \/ 66.04 mm\u003c\/li\u003e\n\u003cli\u003eMax Diameter: 0.27 in. \/ 6.8 mm\u003c\/li\u003e\n\u003cli\u003eTotal Weight: 0.05 oz \/ 1.0g\u003c\/li\u003e\n\u003cli\u003eIncludes one converter\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Monteverde Pens","offers":[{"title":"Default Title","offer_id":49309299212427,"sku":"MV31083","price":5.5,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1693\/8459\/files\/e8f1906b-5fbd-4d4e-ba44-dd713ed73bd2.png?v=1788539145","url":"https:\/\/goldspot.com\/products\/monteverde-usa-standard-international-ink-mixer-piston-converter","provider":"Goldspot Pens","version":"1.0","type":"link"}