Push-Fit Fittings Kit — PC4-M10 + 2× ECAS04 + 2× Collet Clips

The filament-path fittings for one toolhead: a PC4-M10 coupler for the extruder, two ECAS04 embedded collets for the hotend side and two clips to lock the tube. The same five pieces that go into our extruder kits, on their own for a rebuild or a spares bag.

What's in the kit

• 1× PC4-M10 push-fit fitting, black collar — M10 thread, 4 mm OD tube
• 2× ECAS04 embedded collet with blue release caps — for housings cut with the ECAS04 pocket
• 2× orange collet clips — hold the collet out so the tube cannot back out under retraction

Fits

• 4 mm OD PTFE or FEP tube; any extruder or toolhead with an M10 port for the PC4 and an ECAS04 pocket for the collets — Voron toolheads, ERCF, most printed BMG-style extruders.
• Need the tube and the gears too? The Runice and Two Trees extruder kits include this set.

Gotchas

• The PC4-M10 is M10, not the M6 of a PC4-M6 — check the port.
• Same parts, same shelf as the singles linked above — if the kit reads sold out, one of its parts is.