Capricorn Bowden PTFE Tubing 1M XS 1.75mm w/ Fittings, Hotend Socks, 0.4mm Nozzles, Cutter Review (2026)

Who should reach for this kit

This bundle targets owners of Bowden style printers, common on Ender, Creality and similar budget to midrange machines, who are either replacing worn PTFE tubing or building a printer from a kit that expects the buyer to source their own tube. Bundling fittings, a cutter, hotend socks and spare nozzles into one purchase saves ordering four or five separate parts to complete a single upgrade, which is convenient for a first time Bowden rebuild. It suits printing PLA, PETG and similar filaments where low friction tubing meaningfully improves feed reliability. Direct drive printer owners without a Bowden tube path, or anyone who already owns fittings and just needs tubing, will find parts of this bundle redundant.

What genuine Capricorn XS tubing brings

Capricorn's XS series is built from what the manufacturer describes as high purity virgin Japanese PTFE with a tight 1.9mm inner diameter and 4mm outer diameter, held to a tolerance of about plus or minus 0.05mm. That tight, consistent bore is the main selling point over generic PTFE tube, since it reduces the tubing's tendency to bulge or deform under extrusion pressure, which in turn cuts down on under extrusion and inconsistent flow, particularly with softer filaments. The included fittings connect the tube to a standard Bowden extruder and hotend, while the cutter is meant to give a clean, square cut, since an angled or ragged cut end is a common source of grinding and clogs in Bowden setups.

Installing the kit and keeping it maintained

Fitting a new length of tubing means cutting to length with the included cutter, seating it fully into both the extruder and hotend fittings, and trimming any excess so the tube sits flush against the nozzle's heat break to avoid a gap where filament can ooze or jam. The hotend socks included in this bundle wrap around the heater block to help hold temperature steady and reduce heat loss, which several owners of similar Capricorn bundles note improves print consistency, though sock fit depends on the exact heater block shape and is worth checking before ordering if your hotend is an uncommon model. The bundled nozzles are standard brass, fine for PLA and PETG but not intended for abrasive filaments like carbon fiber blends, which need a hardened steel nozzle instead.

How it compares with the 2 meter version and other kits

The main alternative in this lineup is the 2 meter version of essentially the same bundle, which suits builds with a longer tube run or anyone equipping two printers at once, at a higher price for the extra length most single Ender style machines will not use. Other Capricorn branded bundles sold for specific printers, including versions marketed for Sovol or Creality machines, package similar fittings and cutters around the same core XS tubing, so the practical differences come down to fitting sizes included and bundled extras rather than the tube itself.

Bottom line and when to skip it

For a Bowden printer overdue for a tubing refresh, this kit is a convenient one stop purchase that covers the tube, fittings, cutter and a couple of useful extras in a single order. Skip it if your printer needs a longer run than one meter, since the 2 meter version avoids leaving tubing spare or short. It is also not the right pick if you print abrasive composite filaments regularly, since the bundled brass nozzles will wear quickly and a hardened nozzle should be bought separately regardless of which tubing kit you choose.

Frequently asked questions