Set of 5 3/16″ aquarium air hose connectors // Aquarium air hose connector

Set of 5 3D-printable plug-in fittings for standard diameter ~Ø 5 mm aquarium hoses

🆔 Design No 1421

⚙︎ Formats : STL

𐊵 Version : 1.0

No AI - No virus

✏︎ Designer : M@t - apiobi

🗓 Published on 20 March 2026

Views : 95

💬 Exchanges : 0


© Licence : Apiobi UPPE / Personal and private use only

3,51 $

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Description

Complete set consisting of 5 straight connectors in I, L, T, X, and Y shapes, compatible with standard 3/16″ aquarium air tubing (≈ 5 mm).
Everything you need to easily connect your O2 air pump or CO2 system.
These fittings are not suitable for high-pressure applications.

Suitable for connecting air and water hoses for your aquarium, aquascaping, fountain, pond, fish tank, breeding tank installations.

You can download all 5 fittings for the price indicated.

 

Technical Tips for 3D Printing

Materials : PETG recommended, otherwise ABS, ASA, Nylon depending on use or other technical materials. PLA not recommended
Orientation: preferably flat, with easy-to-remove stand
Support: Adapt angle to avoid inserting a support inside the fittings that would be impossible to remove, given the inside diameter.

The models shown in the photos and/or GIFs (printed from the STL files you are about to download) have been deliberately printed from the test phases on an original ENDER 3 PRO, simply equipped:

  • a BLTouch,

  • and a PEI plate.

🎯 Objective: to prove two essential points

  1. 3D PRINTABILITY These models print perfectly in FDM.

  2. They can be printed on all FDM 3D printers, without the need for a high-end or state-of-the-art machine.

👉 If printing is excellent on an Ender 3, it will be just as good on your printer.

 

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