Stainless Steel Female Threaded Hose Barb Fittings — 1/4" to 3/4" NPT

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Stainless Steel Female Threaded Hose Barb Fittings — 1/4" to 3/4" NPT

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size option: 3&4"-25mm

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Stainless Steel Hose Barb Fittings — Reliable Female Thread Connection for Gas, Water & Air Lines

Leaky fittings and corroded connectors are a constant headache for plumbers, HVAC technicians, and serious DIYers. Whether you're routing a gas line in a workshop, connecting a coolant hose in an engine bay, or building a fluid transfer system, you need a fitting that holds tight and won't rust out after a season. These stainless steel female threaded hose barb fittings are built for exactly that — delivering a secure, corrosion-resistant connection between threaded ports and flexible hoses.

Each fitting features a female threaded inlet and a barbed tail outlet. The female thread sizes range from 1/4" to 3/4", and barb lengths are available from 8mm (≈5/16") to 25mm (≈1"). The barbed tail is designed to grip the inner wall of flexible hose tubing, while the female thread connects directly to a male-threaded port or valve. Available in multiple size combinations to match your specific hose and port dimensions.

These female threaded hose barb connectors are well-suited for low-pressure gas line connections in workshop equipment, water line routing in irrigation and plumbing systems, and coolant or air hose connections in automotive and industrial setups — anywhere a secure barb-to-thread transition fitting is needed.

🔗 Compatibility Note: Female thread end is generally compatible with NPT male-threaded ports (1/4", 3/8", 1/2", 3/4"). Barb tail fits flexible hoses with matching inner diameter. Verify your thread standard and hose ID before ordering.

✅ Key Features of These Stainless Steel Hose Barb Fittings

🔩Female Thread Inlet — Threads directly onto male-threaded ports, valves, or manifolds; compatible with standard NPT thread sizes from 1/4" to 3/4".
🌊Barbed Tail Outlet — Ribbed barb profile grips the inner wall of flexible hose tubing, creating a pull-resistant, leak-reducing connection without additional fittings.
🛡️Stainless Steel Construction — Resists rust, oxidation, and corrosion in wet, outdoor, and mildly corrosive environments — a clear advantage over brass or zinc fittings in demanding conditions.
📐Multiple Size Combinations — Available in 15 size variants pairing thread diameter (1/4" to 3/4") with barb length (8mm to 25mm), so you can match both your port and hose in one fitting.
⚙️Versatile Media Compatibility — Suitable for use with gas, water, air, and light fluid transfer lines; stainless steel is generally inert to a wide range of common media.
🔧Tool-Free Hose Assembly — Push the barb into the hose end by hand; add a hose clamp for a secure, pressure-rated connection — no special tools or crimping equipment required.

📐 Technical Specifications — Female Threaded Hose Barb Fittings

Material	Stainless Steel
Connection Type	Female thread (inlet) × Barbed tail (outlet)
Thread Sizes Available	1/4", 3/8", 1/2", 3/4"
Barb Lengths Available	8mm (≈5/16"), 10mm (≈3/8"), 12mm (≈15/32"), 13mm (≈1/2"), 15mm (≈19/32"), 20mm (≈25/32"), 25mm (≈1")
Thread Standard	Generally NPT — see variant options to confirm
Compatible Hose Types	PVC tubing, rubber hose, silicone hose, braided flexible hose
Recommended Hose Clamp	Yes — for pressurized or vibration-prone applications
Finish	Brushed stainless (natural)
Pressure Rating	Contact us to confirm for your specific size
Quantity per Order	See variant options

⚠️ Sizing Tip: The first number in each variant (e.g., "1/2"") is the female thread diameter; the second number (e.g., "15mm") is the barb tail length. Match the thread to your port and the barb length to your hose ID for best results.

❓ Frequently Asked Questions

How do I choose the right barb length for my hose?

Generally, the barb length should be at least equal to the inner diameter of your hose. For example, a 1/2" (≈12mm) ID hose typically works best with a 12mm or 15mm barb. Longer barbs provide more grip and are recommended for higher-pressure applications. When in doubt, size up on barb length.

What thread standard do these fittings use?

These fittings are generally compatible with NPT (National Pipe Taper) thread standards, which are the most common in the US. Please verify your port thread standard before ordering — BSP threads look similar but are not interchangeable with NPT. If you're unsure, contact us to confirm.

Can these fittings be used for gas lines?

Stainless steel hose barb fittings are generally suitable for low-pressure gas applications such as workshop equipment or propane lines. Always verify the pressure rating and gas compatibility for your specific use case, and apply PTFE thread tape to the female threads before installation to ensure a gas-tight seal.

Are these fittings suitable for outdoor or corrosive environments?

Yes. Stainless steel construction provides strong resistance to rust and corrosion, making these fittings well-suited for outdoor plumbing, marine environments, irrigation systems, and exposure to moisture or mild chemicals — applications where standard carbon steel or zinc fittings would typically corrode.

What hose types are compatible with these barb fittings?

These barb fittings are typically compatible with flexible hoses including PVC tubing, rubber hose, silicone hose, and braided hose. The hose inner diameter should match the barb diameter for a secure, leak-resistant connection. Always confirm the hose ID matches the barb size you select.

Do I need a hose clamp with these fittings?

For most applications — especially those involving pressure, vibration, or continuous fluid flow — a hose clamp is strongly recommended. The barb alone provides a friction grip, but a clamp ensures the hose cannot pull off under pressure or movement. Worm-drive stainless steel clamps are a common pairing.

What is the pressure rating of these fittings?

Pressure ratings vary by size and the hose or clamp used in the assembly. In most cases, stainless steel hose barb fittings of this type are rated for low-to-medium pressure systems. Contact us to confirm the rating for your specific size and application before use in high-pressure lines.

🛒 Select your thread size and barb length above, then add to cart — ships from our US warehouse.

Stainless Steel Female Threaded Hose Barb Fittings — 1/4" to 3/4" NPT

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Description

Stainless Steel Hose Barb Fittings — Reliable Female Thread Connection for Gas, Water & Air Lines

✅ Key Features of These Stainless Steel Hose Barb Fittings

📐 Technical Specifications — Female Threaded Hose Barb Fittings

❓ Frequently Asked Questions

Stainless Steel Female Threaded Hose Barb Fittings — 1/4" to 3/4" NPT

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