{"product_id":"fisher-space-pen-refill-2-pack-spr4","title":"Fisher Space Pen Refill — 2-Pack (SPR4)","description":"\u003cp\u003eThe Fisher SPR4 is the only refill we stock because it's the only one we trust. Pressurized thixotropic ink writes at -35°F to 250°F, upside down, on wet paper, and in zero gravity. Not marketing copy — actual engineering used by NASA since 1965.\u003c\/p\u003e\n\n\u003cp\u003eFits all Apex pens. Also fits most bolt-action and click-action tactical pens on the market.\u003c\/p\u003e\n\n\u003cul\u003e\n\u003cli\u003eFisher Space Pen SPR4 pressurized cartridge — 2 pack\u003c\/li\u003e\n\u003cli\u003eWrites in extreme temperatures: -35°F to 250°F (-37°C to 121°C)\u003c\/li\u003e\n\u003cli\u003eWrites upside down, on wet paper, over grease\u003c\/li\u003e\n\u003cli\u003eMedium point, black ink\u003c\/li\u003e\n\u003cli\u003e7-year shelf life — buy a spare and forget about it\u003c\/li\u003e\n\u003cli\u003eFits all Apex pens, Schmidt P8126 compatible housings, and most Parker-style threads\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003e\u003cstrong\u003eOne pack keeps you writing for approximately 6–9 months of daily use. Two packs = a year of zero interruptions.\u003c\/strong\u003e\u003c\/p\u003e","brand":"Apex EDC","offers":[{"title":"2-Pack","offer_id":48283249737942,"sku":"APEX-REFILL-2PK","price":14.0,"currency_code":"USD","in_stock":false}],"url":"https:\/\/pensapex.com\/products\/fisher-space-pen-refill-2-pack-spr4","provider":"My Store","version":"1.0","type":"link"}