Will these work on 1/4” steal air lines

As long as it’s super clean, it should work fine.

can i use metal tubing

I would not recommend using metal tubing. But I am sure that it is possible to use metal tubing but I would think that it leaves things open to leaking.

are these dot approved

Id say no but serve it's purpose. I only run max 25 psi for my helper bags.

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1/4 Union Straight Push to connect fittings Stainless Steel Pneumatic Push Connectors,CEKER 1/4" x 1/4" OD Tube Quick Connect Fittings Air Line Fittings for 1/4 inch Tube 2Pack

Product ID: 182987168

Details

Brand
CEKER
Color
Brass
Connector Type
Union
Exterior Finish
Brass
Item Weight
0.03 kg
Manufacturer
SONNA

🔗1/4" OD tube quick connect

🔥-20°C to 120°C working temp

⚙️2MPa | 290psi pressure rating

13948CFA

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Description

🔧 Upgrade your pneumatic game with seamless, durable fittings!

BUILT TO ENDURE - Nickel-plated brass resists corrosion and high temps, ensuring long-lasting reliability.
PRECISION SEAL TECH - FKM (Viton) O-ring guarantees airtight and watertight connections under pressure.
VERSATILE COMPATIBILITY - Works seamlessly with PU, Nylon, and Soft PE tubing for air, water, and steam applications.
EFFORTLESS QUICK CONNECT - Push-to-connect design for instant, tool-free installation and leak-proof sealing.
FLEXIBLE DIRECTION CONTROL - Ellipse release ring lets you easily change tubing direction post-installation.

The CEKER 1/4" Union Straight Push-to-Connect Fittings deliver professional-grade pneumatic and fluid connections with a robust 2MPa pressure rating and wide temperature tolerance (-20°C to 120°C). Crafted from nickel-plated brass with FKM O-rings, these quick-connect fittings ensure corrosion resistance, airtight seals, and effortless installation for air, water, and steam lines. Perfect for automotive, industrial, and home repair applications, they offer versatile compatibility and easy tubing direction adjustments, making them a must-have for any precision piping setup.

Specifications

ASIN	B07TV5S16G
Best Sellers Rank	#11,672 in Industrial & Scientific ( See Top 100 in Industrial & Scientific ) #33 in Push-to-Connect Fittings
Brand Name	CEKER
Color	Brass
Connector Type	Union
Customer Reviews	4.4 4.4 out of 5 stars (215)
Exterior Finish	Brass
Item Weight	0.03 kg
Manufacturer	SONNA
Material Type	Nickel, Stainless Steel
Number of Pieces	2
Set Name	2-Pack
Size	1/4" OD
UPC	713091525900

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13948CFA

Duties & taxes included

In stock

Sold byAmazon SenegalDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

Buyer Protection · Full refund if your order doesn't arrive as described.

Desertcart purchases this item on your behalf and handles shipping, customs, and support to Senegal.

Secure transaction

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TrustScore 4.5 | 7,300+ reviews

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