{"product_id":"ptfe-tube-4m","title":"PTFE Tube (4M)","description":"\u003ch2 data-start=\"87\" data-end=\"136\"\u003ePTFE Tube — Filament Guide \u0026amp; Low-Friction Feed\u003c\/h2\u003e\n\u003cp data-start=\"138\" data-end=\"334\"\u003eThe PTFE tube guides filament from the spool to the printer while reducing friction for smooth, reliable feeding. It’s a wear item and should be inspected regularly as part of routine maintenance.\u003c\/p\u003e\n\u003cp data-start=\"336\" data-end=\"545\"\u003eOver time, filament rubbing can wear the inner surface. Worn PTFE tubes can cause feeding resistance, misfeeds, or filament buildup—especially in AMS systems—so timely replacement helps prevent print failures.\u003c\/p\u003e\n\u003ch3 data-start=\"547\" data-end=\"562\"\u003eKey details\u003c\/h3\u003e\n\u003cp data-start=\"563\" data-end=\"699\"\u003e• Function: Reduces resistance and guides filament\u003cbr data-start=\"613\" data-end=\"616\"\u003e• Inner diameter: 2.5 mm\u003cbr data-start=\"640\" data-end=\"643\"\u003e• Outer diameter: 4 mm\u003cbr data-start=\"665\" data-end=\"668\"\u003e• Material: PTFE (low-friction)\u003c\/p\u003e\n\u003ch3 data-start=\"701\" data-end=\"722\"\u003eMaintenance notes\u003c\/h3\u003e\n\u003cp data-start=\"723\" data-end=\"978\"\u003e• PTFE tubes are consumables and will wear over time\u003cbr data-start=\"775\" data-end=\"778\"\u003e• Inspect during regular printer or AMS maintenance\u003cbr data-start=\"829\" data-end=\"832\"\u003e• Replace if you see abrasion, drag, deformation, or feeding issues\u003cbr data-start=\"899\" data-end=\"902\"\u003e• Worn tubes can lead to AMS jams or filament accumulation if left unchecked\u003c\/p\u003e\n\u003ch3 data-start=\"980\" data-end=\"999\"\u003ePolicy snapshot\u003c\/h3\u003e\n\u003cp data-start=\"1000\" data-end=\"1145\"\u003eConsumable parts are final sale. Approved returns on other items must be new and unopened; restocking fees and non-refundable shipping may apply.\u003c\/p\u003e","brand":"Convoy Westcan","offers":[{"title":"Default Title","offer_id":43078029574207,"sku":"BQPTFE","price":10.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0625\/2442\/4255\/files\/1990000099_1990000097_1000_13.webp?v=1775556025","url":"https:\/\/convoywestcan.ca\/products\/ptfe-tube-4m","provider":"Convoy-Westcan 3D Printers, Industrial Supplies \u0026 Fasteners","version":"1.0","type":"link"}