{"product_id":"pilot-con-70-push-button-converter","title":"Pilot CON-70 Push-Button Fountain Pen Converter","description":"\u003ch2\u003ePilot CON-70 — Push-Button Piston Converter for Pilot Fountain Pens\u003c\/h2\u003e\u003cp\u003eMore ink, less refilling. The \u003cstrong\u003ePilot CON-70\u003c\/strong\u003e is Pilot's high-capacity push-button converter — engineered for writers who demand maximum ink volume and a smooth, one-handed filling experience. A single press of the button compresses the internal piston, and releasing it draws a full charge of ink into the generous reservoir. It's the fastest, most satisfying way to fill a fountain pen from a bottle.\u003c\/p\u003e\u003cp\u003eWith its \u003cstrong\u003ebayonet twist-lock fitting\u003c\/strong\u003e, the CON-70 locks securely into compatible Pilot pens for a stable, rattle-free connection. Whether you're filling with a classic blue-black or an exotic shimmering ink, the CON-70's large capacity means you write more and stop less.\u003c\/p\u003e\u003ch3\u003eKey Features\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003ePush-Button Piston Mechanism\u003c\/strong\u003e — One-press compression draws ink quickly and efficiently — no twisting required\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLarge Ink Capacity\u003c\/strong\u003e — Holds significantly more ink than standard converters or cartridges for extended writing sessions\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBayonet Twist-Lock Fitting\u003c\/strong\u003e — Secure, rattle-free connection to compatible Pilot fountain pens\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCompatible with Any Bottled Ink\u003c\/strong\u003e — Use any water-based fountain pen ink from any brand\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTransparent Barrel\u003c\/strong\u003e — Visible ink window for easy monitoring of remaining ink level\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eReusable \u0026amp; Easy to Clean\u003c\/strong\u003e — Flush with water between ink changes for a clean refill\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMade in Japan\u003c\/strong\u003e — Pilot's precision Japanese manufacturing and quality control\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eSpecifications\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eBrand: Pilot\u003c\/li\u003e\n\u003cli\u003eModel: CON-70\u003c\/li\u003e\n\u003cli\u003eType: Push-button piston converter\u003c\/li\u003e\n\u003cli\u003eFitting: Bayonet (twist-lock)\u003c\/li\u003e\n\u003cli\u003eCompatible With: Pilot fountain pens with CON-70 bayonet fitting\u003c\/li\u003e\n\u003cli\u003eInk Source: Any bottled fountain pen ink\u003c\/li\u003e\n\u003cli\u003eBarrel: Transparent\u003c\/li\u003e\n\u003cli\u003eOrigin: Japan\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\u003ch4\u003eQ: Which Pilot fountain pens are compatible with the CON-70?\u003c\/h4\u003e\u003cp\u003eA: The CON-70 uses a \u003cstrong\u003ebayonet twist-lock fitting\u003c\/strong\u003e and is compatible with Pilot pens designed for this mechanism, including the \u003cstrong\u003eCustom 74, Custom 91, Custom Heritage 91, Falcon, Vanishing Point\u003c\/strong\u003e, and others. It is not compatible with pens that use the CON-40 friction-fit converter. Always verify your pen's converter compatibility before purchasing.\u003c\/p\u003e\u003ch4\u003eQ: How do I fill the CON-70 with bottled ink?\u003c\/h4\u003e\u003cp\u003eA: (1) Press the button on the converter to push the piston down fully, expelling any air; (2) submerge the nib fully into the ink bottle; (3) release the button slowly to draw ink up into the reservoir; (4) remove from the bottle and gently wipe the nib. For a fuller fill, repeat the press-and-release once more while the nib remains submerged.\u003c\/p\u003e\u003ch4\u003eQ: What is the difference between the CON-70 and the CON-40?\u003c\/h4\u003e\u003cp\u003eA: The two converters differ in both \u003cstrong\u003efilling mechanism and fitting type\u003c\/strong\u003e. The CON-70 uses a \u003cstrong\u003epush-button piston\u003c\/strong\u003e and a \u003cstrong\u003ebayonet twist-lock\u003c\/strong\u003e fitting, while the CON-40 uses a \u003cstrong\u003etwist knob\u003c\/strong\u003e and a \u003cstrong\u003efriction push-in\u003c\/strong\u003e fitting. They are not interchangeable — check which fitting your pen requires before purchasing.\u003c\/p\u003e\u003ch4\u003eQ: Can I use any brand of bottled ink with the CON-70?\u003c\/h4\u003e\u003cp\u003eA: Yes. The CON-70 is compatible with any standard water-based fountain pen ink — including Pilot Iroshizuku, Diamine, Sailor, Waterman, Lamy, and others. Avoid pigment inks or India ink not specifically formulated for fountain pens, as these can damage the converter mechanism.\u003c\/p\u003e\u003ch4\u003eQ: How do I clean the CON-70 between ink changes?\u003c\/h4\u003e\u003cp\u003eA: Press the button to expel remaining ink, then draw up clean water and expel it repeatedly until the water runs clear. For a thorough clean, detach the converter from the pen and rinse under running water. Allow to air dry completely before refilling with a new ink.\u003c\/p\u003e\u003ch4\u003eQ: Why choose the CON-70 over the CON-40?\u003c\/h4\u003e\u003cp\u003eA: The CON-70 offers a \u003cstrong\u003elarger ink capacity\u003c\/strong\u003e and a faster, one-handed \u003cstrong\u003epush-button filling action\u003c\/strong\u003e — making it the preferred choice for heavy writers and those who use high-capacity pens. The CON-40's twist mechanism offers more precise control over ink draw, which some users prefer. The right choice depends on your pen's compatibility and your personal filling preference.\u003c\/p\u003e","brand":"Pilot","offers":[{"title":"Default Title","offer_id":46560082821154,"sku":"PILOT-FPC-CON70","price":18.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0902\/3045\/6354\/files\/Pilot-CON-70-Push-Button-Fountain-Pen-Converter.jpg?v=1787757695","url":"https:\/\/www.xypen.com\/products\/pilot-con-70-push-button-converter","provider":"XYPen","version":"1.0","type":"link"}