
Reducing Bushing and Pipe Adapter STL Models
This collection gathers STL files for reducing bushings, threaded adapters, hose barbs, and related pipe fittings. It helps you find a starting point for 3D printing parts that connect hoses, pipes, and threaded ports. Check each model page for the thread standard and dimensions before you slice. Polyzon does not confirm whether models are free, their price, license, official status, affiliation, safety or fitness. Check the current terms at the source.
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Auswahlregeln: Polyzon-Redaktion · Text aktualisiert: 13.10.2026
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Alle Modelle dieser Sammlung

1/2" MNPT Brass Hose Fitting 3/8" Barb

Miniature Queen Anne Chair

3/4" MNPT X 1/2" FNPT Brass Pipe Fitting

3-Way Elbow, 1/2 Inch PVC Pipe Fitting Series #HalfInchPVCFittings - UPDATED 2015-02-02

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

1/4" MNPT X 1/2" HOSE ID Barbed Hose Fitting

1/4'' BSP male thread to 8mm hose fitting

3/8 Female to 1/2 Male NPT Fitting

coupling fittings 1/2” garden hose

2-in-1 Whistle (Dog + Standard)

4-Way Tee & 5-Way Tee, 1/2 Inch PVC Pipe Fitting Series #HalfInchPVCFittings UPDATE 2015-07-03

Garden Hose to 1/2 in Barb Fitting

1/4 NPT male - 1/2 hose barb fitting

Dust Collection 4-inch Port to 2.5-inch Hose Tapered Adapter Dust Collection Reducer Fitting (v1.0)

Team Fortress 2 Level 1 Sentry - "Fixed"

4-Way Elbow, 1/2 Inch PVC Pipe Fitting Series #HalfInchPVCFittings UPDATE 2015-07-03

Fitting for connecting 1/2 tube to 16 mm hose

1/2" THREADOLET FITTING

Streetlamp

Barb Fitting 1/2 inch BSP thread

hexagon nipple threaded pipe fitting 1/2 Male NPT x 1/2 Male NPT

3-Way Elbow, 1/2" PVC Pipe Fitting

Miniature Mantel

JIC Fittings from 1/8th to 2 Inch

Hydraulic Fittings 1/2'' Male NPT→ Hoses Ø 4–24 mm

Bulkhead fitting for a 1/2" poly hose

Train Whistle (1/2" Air Compressor Fitting)

4-Way Tee & 5-Way Tee, 1/2" PVC Pipe Fittings

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

G 1 1/2 union fitting to 38mm (1 1/2'') hose connector
1/2" NPT Pipe Fittings

3/8 female to 1/2 male fitting

3/4 JIC 12 TPI to 1/2 NPT 14 TPI female female coupler for Harvest Right Freeze Dryer vacuum fittings

Drip hose coupling fitting 1/2” (13-16mm)

Forged Steel Threadolet 2x1 - Pipe Fitting

1/2 NPT to 3/4 GHT/NPT Multi-Thread Pipe Fitting

1/2" MNPT x 1/4" MNPT Brass Fitting

1/2" FNPT Brass Hose Fitting 3/8" Barb

1/2" MNPT x 3/8" MNPT Brass Pipe Fitting

5-Way Cross & 6-Way Cross, 1/2 Inch PVC Pipe Fitting Series #HalfInchPVCFittings UPDATE 2015-07-03

1/2" FNPT Bulkhead Fitting

Reconfigurable 22.5 & 45 Degree 3-Way Elbows, 1/2 Inch PVC Pipe Fitting Series #HalfInchPVCFittings UPDATE 2015-07-03

Pyramid Elbows & Topper, 1/2 Inch PVC Pipe Fitting Series #HalfInchPVCFittings

Miniature Queen Anne Sofa

Parker 169PMT-6-8 Brass Swivel Fitting, 1/2" MPT x 3/8" PTC
«Reducing Bushing and Pipe Adapter STL Models»
The models range from simple threaded reducers and bushings to barbed hose adapters, PVC-style tees, elbows, and garden hose couplings. Some are designed for a single transition between two thread standards, while others combine several ports or change both thread type and hose diameter. Sanitary clamp and dust-collection adapters appear as separate groups because their connection geometry differs from ordinary pipe threads.
When choosing a model, read the author's notes on thread type, nominal size, and whether the part is meant for a hose, pipe, or threaded port. Check the number of parts, assembly steps, and whether supports are needed for overhangs or internal threads. The material and slicer settings the author lists matter because threaded fittings and barbs often need enough wall thickness and layer adhesion for the intended connection. Photos of real prints can show how threads and barb profiles come out on a 3D printer.
To refine the search, try synonyms such as reducer, bushing, adapter, coupling, nipple, barb, and thread converter. Related topics include NPT, BSP, garden hose, PVC pipe, pneumatic fittings, and sanitary clamp adapters. Adding the thread standard or the two connection types to the query usually narrows the results more than a single size term.
Häufige Fragen
What is a reducing bushing used for in 3D printing?
How do I know which thread standard a model uses?
Can threaded fittings be printed without supports?
What should I check before printing a hose barb adapter?
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