{"product_id":"the-filament-splice-ptfe-connector","title":"The Filament Splice | PTFE Connector for 1.75 mm Filament, ID 1.8 mm","description":"\u003cdiv class=\"product-narrative\"\u003e\n\u003cp\u003eA spool has a habit of running out three hours into a nine hour print. The printer keeps going, the extruder keeps pulling, and the part is lost. A splice done properly turns that loss into thirty seconds of work.\u003c\/p\u003e\n\u003cp\u003eThese connectors are short PTFE tubes, thirty seven millimeters long, with a one point eight millimeter inner bore and a two point six millimeter outer diameter. The bore is sized so that 1.75 millimeter filament passes with minimal play, which is the difference between a splice that feeds and a splice that binds at the hotend. The PTFE wall resists the heat soak that reaches the feed path on a long print and keeps friction low along the whole length.\u003c\/p\u003e\n\u003cp\u003eThey also solve the routing problem in a printer with an enclosure or a top-mounted spool, where the run from spool to extruder passes several joints. Replacing a worn or kinked section of guide tube with one of these keeps the filament path straight. Sold in packs of one hundred or two hundred, which is the right quantity if you maintain more than one machine or share a workshop.\u003c\/p\u003e\n\u003cp style=\"font-style:italic; color:#1a3a5c; border-left:3px solid #c9a227; padding-left:14px; margin-top:22px;\"\u003eThe cheapest part in the printer is also the one that decides whether the print finishes.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"product-features\" style=\"margin-top:26px;\"\u003e\n\u003ch3 style=\"font-size:19px; color:#1a3a5c;\"\u003eWhat Makes It Different\u003c\/h3\u003e\n\u003cul style=\"list-style:none; padding:0; margin:12px 0;\"\u003e\n\u003cli style=\"padding:8px 0; border-bottom:1px solid #eeeeee;\"\u003e✦ 1.8 mm inner bore sized for 1.75 mm filament.\u003c\/li\u003e\n\u003cli style=\"padding:8px 0; border-bottom:1px solid #eeeeee;\"\u003e✦ 2.6 mm outer diameter fits standard pneumatic couplers.\u003c\/li\u003e\n\u003cli style=\"padding:8px 0; border-bottom:1px solid #eeeeee;\"\u003e✦ 37 mm length suits splice joints and guide-tube repairs.\u003c\/li\u003e\n\u003cli style=\"padding:8px 0; border-bottom:1px solid #eeeeee;\"\u003e✦ PTFE body keeps friction low and resists heat soak.\u003c\/li\u003e\n\u003cli style=\"padding:8px 0; border-bottom:1px solid #eeeeee;\"\u003e✦ Cuts filament waste at the end of a spool.\u003c\/li\u003e\n\u003cli style=\"padding:8px 0; border-bottom:1px solid #eeeeee;\"\u003e✦ Sold in 100 and 200 piece packs for multi-machine shops.\u003c\/li\u003e\n\u003cli style=\"padding:8px 0; border-bottom:1px solid #eeeeee;\"\u003e✦ Also usable for bowden tube repairs and feed-path extensions.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"product-context\" style=\"margin-top:26px;\"\u003e\n\u003ch3 style=\"font-size:19px; color:#1a3a5c;\"\u003eWhy the Bore Diameter Matters\u003c\/h3\u003e\n\u003cp\u003eFilament needs a bore with clearance, but not much of it. A bore that is too tight grips the filament and raises extruder load. A bore that is too loose lets the filament wander, and the path through a long guide section stops being predictable. At 1.8 millimeters against 1.75 millimeter filament there is just enough clearance to feed freely while the filament stays on axis.\u003c\/p\u003e\n\u003cp\u003eThe thirty seven millimeter length is the other half of the design. It is long enough to bridge a splice joint and hold it straight, and short enough to sit in a feed path without adding meaningful drag. Shorter connectors pull apart under tension. Longer ones add friction without benefit.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"product-specs\" style=\"margin-top:26px;\"\u003e\n\u003ch3 style=\"font-size:19px; color:#1a3a5c;\"\u003eTechnical Specifications\u003c\/h3\u003e\n\u003cul style=\"list-style:none; padding:0; margin:12px 0;\"\u003e\n\u003cli style=\"padding:8px 0; border-bottom:1px solid #eeeeee;\"\u003e\n\u003cstrong\u003eItem type:\u003c\/strong\u003e PTFE tube connector\u003c\/li\u003e\n\u003cli style=\"padding:8px 0; border-bottom:1px solid #eeeeee;\"\u003e\n\u003cstrong\u003eInner diameter:\u003c\/strong\u003e 1.8 mm\u003c\/li\u003e\n\u003cli style=\"padding:8px 0; border-bottom:1px solid #eeeeee;\"\u003e\n\u003cstrong\u003eOuter diameter:\u003c\/strong\u003e 2.6 mm\u003c\/li\u003e\n\u003cli style=\"padding:8px 0; border-bottom:1px solid #eeeeee;\"\u003e\n\u003cstrong\u003eLength:\u003c\/strong\u003e 37 mm\u003c\/li\u003e\n\u003cli style=\"padding:8px 0; border-bottom:1px solid #eeeeee;\"\u003e\n\u003cstrong\u003eFilament compatibility:\u003c\/strong\u003e 1.75 mm\u003c\/li\u003e\n\u003cli style=\"padding:8px 0; border-bottom:1px solid #eeeeee;\"\u003e\n\u003cstrong\u003eMaterial:\u003c\/strong\u003e PTFE\u003c\/li\u003e\n\u003cli style=\"padding:8px 0; border-bottom:1px solid #eeeeee;\"\u003e\n\u003cstrong\u003ePack quantities:\u003c\/strong\u003e 100 or 200 pieces\u003c\/li\u003e\n\u003cli style=\"padding:8px 0; border-bottom:1px solid #eeeeee;\"\u003e\n\u003cstrong\u003eFitment:\u003c\/strong\u003e Standard pneumatic couplers\u003c\/li\u003e\n\u003cli style=\"padding:8px 0; border-bottom:1px solid #eeeeee;\"\u003e\n\u003cstrong\u003eHeat resistance:\u003c\/strong\u003e Suited to feed-path temperatures\u003c\/li\u003e\n\u003cli style=\"padding:8px 0; border-bottom:1px solid #eeeeee;\"\u003e\n\u003cstrong\u003eColor:\u003c\/strong\u003e Translucent white\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"product-applications\" style=\"margin-top:26px;\"\u003e\n\u003ch3 style=\"font-size:19px; color:#1a3a5c;\"\u003eWhere It Belongs\u003c\/h3\u003e\n\u003cp\u003ePrint farms use them to splice near-empty spools into a fresh one instead of scrapping the remainder. Anyone running a Bowden tube setup uses them to repair a kinked or worn guide section without ordering a full replacement assembly. Enclosed printers with long feed paths use them to join tubing runs. Repair shops keep a pack on hand because a failed tube is a five minute fix with a connector and a two day wait without one.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"product-promise\" style=\"margin-top:26px; background:#f7f8fa; border:1px solid #e6e8eb; border-radius:6px; padding:18px 20px;\"\u003e\n\u003ch3 style=\"font-size:18px; color:#1a3a5c; margin-top:0;\"\u003eThe EastSupplier Promise\u003c\/h3\u003e\n\u003cul style=\"list-style:none; padding:0; margin:8px 0 0 0;\"\u003e\n\u003cli style=\"padding:5px 0;\"\u003e✓ Inner and outer diameter checked on a sample before dispatch.\u003c\/li\u003e\n\u003cli style=\"padding:5px 0;\"\u003e✓ Pack counts verified, not estimated by weight.\u003c\/li\u003e\n\u003cli style=\"padding:5px 0;\"\u003e✓ Bulk quantities for print farms quoted on request.\u003c\/li\u003e\n\u003cli style=\"padding:5px 0;\"\u003e✓ Shipped from EastSupplier stock with tracking.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"product-faq\" style=\"margin-top:26px;\"\u003e\n\u003ch3 style=\"font-size:19px; color:#1a3a5c;\"\u003eQuestions Buyers Actually Ask\u003c\/h3\u003e\n\u003cdiv style=\"margin-bottom:15px;\"\u003e\n\u003cp style=\"margin-bottom:4px;\"\u003e\u003cstrong\u003eQ: Will these fit my Bowden tube setup?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp style=\"margin-top:0;\"\u003eA: They suit standard pneumatic couplers with a 4 mm outer tube fitting and are intended for 1.75 mm filament. Measure your existing tube fitting before ordering if your printer uses a non-standard coupler.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"margin-bottom:15px;\"\u003e\n\u003cp style=\"margin-bottom:4px;\"\u003e\u003cstrong\u003eQ: How do I splice filament with one?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp style=\"margin-top:0;\"\u003eA: Heat the two filament ends, push them together to form a joint, trim the flash, then feed the joint through the connector into the extruder.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"margin-bottom:15px;\"\u003e\n\u003cp style=\"margin-bottom:4px;\"\u003e\u003cstrong\u003eQ: Do they work with 2.85 mm filament?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp style=\"margin-top:0;\"\u003eA: No. The 1.8 mm bore is sized for 1.75 mm filament. Using 2.85 mm material will bind and jam.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"margin-bottom:15px;\"\u003e\n\u003cp style=\"margin-bottom:4px;\"\u003e\u003cstrong\u003eQ: Can they be cut to length?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp style=\"margin-top:0;\"\u003eA: Yes, though the ends should stay square and burr free, since a rough edge will scrape the filament.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"margin-bottom:15px;\"\u003e\n\u003cp style=\"margin-bottom:4px;\"\u003e\u003cstrong\u003eQ: Will the connector deform near a hotend?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp style=\"margin-top:0;\"\u003eA: PTFE holds up in the feed path. Direct contact with a heater block is outside its range, so keep it clear of the hot zone.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"margin-bottom:15px;\"\u003e\n\u003cp style=\"margin-bottom:4px;\"\u003e\u003cstrong\u003eQ: Why buy 200 pieces?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp style=\"margin-top:0;\"\u003eA: One pack covers a multi-machine workshop or a print farm, where connectors are consumed during guide-tube repairs.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"margin-bottom:15px;\"\u003e\n\u003cp style=\"margin-bottom:4px;\"\u003e\u003cstrong\u003eQ: What is the outer diameter for?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp style=\"margin-top:0;\"\u003eA: 2.6 mm fits standard pneumatic couplers and push fittings used in Bowden tube setups.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"margin-bottom:15px;\"\u003e\n\u003cp style=\"margin-bottom:4px;\"\u003e\u003cstrong\u003eQ: How many connectors does one spool splice need?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp style=\"margin-top:0;\"\u003eA: One connector per joint. Keep a short connector on the bench rather than cutting it from a guide tube, since a square cut matters.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"margin-bottom:15px;\"\u003e\n\u003cp style=\"margin-bottom:4px;\"\u003e\u003cstrong\u003eQ: Do they work with abrasive filament?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp style=\"margin-top:0;\"\u003eA: Abrasive materials wear PTFE over time. Inspect the bore if you print carbon or glow filament regularly and replace the connector when it starts to oval.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"margin-bottom:15px;\"\u003e\n\u003cp style=\"margin-bottom:4px;\"\u003e\u003cstrong\u003eQ: Can these be used as a guide tube replacement?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp style=\"margin-top:0;\"\u003eA: Yes for short runs. For a full length Bowden tube, use a continuous tube and reserve these for joints and repairs.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"product-gallery\" style=\"margin-top:30px; text-align:center;\"\u003e\n\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0503\/6412\/1244\/files\/S7b410a91a3ae4e329c89a2ec11cd3595i_3869a0b4-14be-48af-a941-bf13b7b4974e.webp?v=1738116302\" alt=\"The Filament Splice | PTFE Connector for 1.75 mm Filament, ID 1.8 mm\" style=\"max-width:100%; height:auto; margin:8px 0; border-radius:4px;\"\u003e\n\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0503\/6412\/1244\/files\/S46cd3154307e4131bcccdfdd0065ecc1X_c074f2e0-f81b-4dcb-986b-55107ac82801.webp?v=1738116302\" alt=\"The Filament Splice | PTFE Connector for 1.75 mm Filament, ID 1.8 mm\" style=\"max-width:100%; height:auto; margin:8px 0; border-radius:4px;\"\u003e\n\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0503\/6412\/1244\/files\/S7adfb395f53a4503a1264a8f7c4edb38G_c3c0c342-735d-48c8-a6a9-6f02b0878512.webp?v=1738116302\" alt=\"The Filament Splice | PTFE Connector for 1.75 mm Filament, ID 1.8 mm\" style=\"max-width:100%; height:auto; margin:8px 0; border-radius:4px;\"\u003e\n\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0503\/6412\/1244\/files\/Sbec67a7037514ba8b140d78f1a333193r_cf2b0262-382a-4ac4-aee0-90e5211cb6d5.webp?v=1738116303\" alt=\"The Filament Splice | PTFE Connector for 1.75 mm Filament, ID 1.8 mm\" style=\"max-width:100%; height:auto; margin:8px 0; border-radius:4px;\"\u003e\n\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0503\/6412\/1244\/files\/Sb3e49dc9d5644a96a8b7959f3f97af91R_74f178c1-aec3-4338-bc13-35b1a9e56616.webp?v=1738116302\" alt=\"The Filament Splice | PTFE Connector for 1.75 mm Filament, ID 1.8 mm\" style=\"max-width:100%; height:auto; margin:8px 0; border-radius:4px;\"\u003e\n\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0503\/6412\/1244\/files\/S662d237338b0476688619d9f81fb6b84P_e2476d32-635c-496c-8f39-fb7bfed6afe6.webp?v=1738116302\" alt=\"The Filament Splice | PTFE Connector for 1.75 mm Filament, ID 1.8 mm\" style=\"max-width:100%; height:auto; margin:8px 0; border-radius:4px;\"\u003e\n\u003c\/div\u003e\n\u003cscript type=\"application\/ld+json\"\u003e{\"@context\":\"https:\/\/schema.org\",\"@type\":\"Product\",\"name\":\"The Filament Splice | PTFE Connector for 1.75 mm Filament, ID 1.8 mm\",\"sku\":\"ES-PTFE-CONN\",\"image\":[\"https:\/\/cdn.shopify.com\/s\/files\/1\/0503\/6412\/1244\/files\/S7b410a91a3ae4e329c89a2ec11cd3595i_3869a0b4-14be-48af-a941-bf13b7b4974e.webp?v=1738116302\"],\"description\":\"PTFE tube connectors with 1.8 mm inner diameter and 2.6 mm outer diameter, 37 mm long, compatible with 1.75 mm filament. 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