Two barb sizes for a 1/2-inch NPT connection
Use this mixed set when a project needs a 1/2-inch female NPT adapter and either a 1/4-inch or 3/8-inch hose barb. The two nominal barb sizes are not interchangeable with every metric hose.
What this item is designed to do
Mixed-size set
Try the nominal 1/4-inch or 3/8-inch barb only after checking the real inner diameter and flexibility of the hose.
Threaded connection
The female side requires a matching 1/2-inch male NPT port; a suitable sealing method may also be required.
DIY routing
Useful for custom low-pressure watering and fluid-transfer layouts after material and pressure suitability are confirmed.
What is included
- 2 × 1/2-in FNPT to 1/4-in barb fittings
- 2 × 1/2-in FNPT to 3/8-in barb fittings
Check before ordering
- Requires a matching 1/2-in male NPT port
- Nominal barb sizes are approximately 6.35 mm and 9.53 mm
- Confirm hose ID and retention before use
- No food, medical or potable-water certification is stated
Product details at a glance
Fit and ratings note
The current listing does not identify a temperature unit or provide supporting certification for its pressure and material-use claims. Choose the fitting based on verified thread, hose and operating requirements.
Need help choosing a part?
Browse tubing and watering parts, or ask PlantMate to help match the dimensions for a project.

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