
3D Printing Fittings: Pipe, Hose and Pneumatic STL Models
This collection gathers STL files for pipe, hose, pneumatic, hydraulic and parametric fittings used in 3D printing projects. You can find models for plumbing repairs, workshop air lines, irrigation setups and frame-based builds. The range helps you match a thread standard or tube size before printing. Polyzon does not confirm whether models are free, their price, license, official status, affiliation, safety or fitness. Check the current terms at the source.
Le texte de cette collection est rédigé en anglais ; la recherche, elle, fonctionne dans toutes les langues.
Comment cette collection est composée
Polyzon compose cette collection à partir des résultats de recherche des plateformes connectées. Les doublons et les modèles sans aperçu sont retirés, les correspondances faibles sont placées à la fin, et le reste suit l’ordre de la recherche. Les modèles appartiennent à leurs auteurs : consultez les conditions sur la page de chaque modèle.
Règles de sélection : la rédaction de Polyzon · Texte mis à jour le 13/10/2026
Par où commencer
Tous les modèles de cette collection

Pipe Fittings

PVC pipe fittings

2020 Extrusions & Fittings

Pneumatic Fittings

Hydraulic Fittings, ORB, JIC, NPT, SAE

Fittings 1/2"
1/2" NPT Pipe Fittings

Configured base of refrigeration copper pipes and fittings (metric)

coupling fittings 1/2” garden hose
Pipe Fittings Collection 1
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Настенные светильники, Лампы, Арматура, Декор.

1/2" Pipe Fittings

Tube Y connector / splitter fittings 4mm-24mm sizes

IMPERIAL PIPE FITTINGS

Adapter Generator - Parametric Fittings & Elbows

Irrigation Fittings - 1/2 inch

Filament Spool Winder - V3 Precision Remix Collection - No bearings or fittings required

Atomstack laser Drag Chain Attachment fittings

Tube Fittings 4mm-24mm sizes

G1/4 Barbed Fittings For 5mm to 13mm Hoses

Pneumatic Fittings PET Bottle Cap

Parametric pipe fittings

Hansa-Flex Hydraulic fittings

1/2 to 2" - NPT Pipe Thread Fittings/Couplers

Simple Water Ball Valve, Hose and Gardena Fittings (print in place)
1" NPT Pipe Fittings

Sanitary fittings(triclover clamps) 2D

PTFE Y Tube Splitter - No PTFE fittings required

Filament Spool Winder - V3 Precision Remix Collection - No fittings required

Pipe fittings Elbow Ø16mm / Ø20mm / Ø25mm Hexagonal Shape - Gomiti di raccordo tubi forma esagonale

PVC fittings for garden

EKWB Quantum Fittings

Ceiling Lamp Shade & Fittings

Bitspower/Corsair Watercooling Fittings

coupling fittings 1/2” garden hose

Bulkhead fittings

1/4" Push to Connect Fittings

BSP Threaded Fittings Library

fittings

Irrigation Fittings

Pokeball Fittings & Stand

Water Sprinkler (for UK/AU/NZ hose fittings)

28mm caravan RV sink water drain pipe connector fittings

Hydraulic Fittings
«3D Printing Fittings: Pipe, Hose and Pneumatic STL Models»
The collection covers several families: PVC and plumbing fittings, pneumatic and hydraulic connectors, hose and irrigation adapters, parametric adapters, and extrusion or tube connectors. They differ mainly in thread standard, tube diameter and the way parts seal or assemble. Some models are single adapters, while others are multi-part assemblies with elbows, tees, nipples or reducers. The reference titles show both metric and imperial naming, so the same function may appear under different size labels.
Before printing, check the thread type and pitch, the nominal tube or pipe size, and whether the model uses a gasket, O-ring or threaded seal. Look at the number of parts, the assembly order and any listed material or settings on the author's page. For parts that carry air or water, wall thickness and print orientation matter, so review photos of real prints and the author's notes. If a model is parametric, confirm the dimensions you enter match your hardware.
To narrow the results, search by thread standard such as NPT, BSP, JIC or ORB, or by size like metric and imperial designations. Related terms include adapter, coupling, elbow, tee, reducer, nipple, barb, bulkhead and valve. You can also combine the fitting type with the intended setup, for example workshop air line, garden irrigation or frame extrusion. If a term returns few matches, try the alternate spelling or the component name alone.
Questions fréquentes
What thread standards appear in 3D-printed fittings?
How do I choose the right fitting size?
Do 3D-printed fittings need supports?
Can I modify parametric fitting models?
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