Reliable 1/4″ air connections that interchange with ARO 210 Series couplers and plugs. The Foster 210-3003S/S is a 303 stainless steel 1/4″ coupler from the Foster 210 Series, rated to 300 PSI and built in the USA for shop air, tools, and pneumatic service.
Specifications
- Brand: Foster
- Series: 210 Series (ARO 210 Interchange)
- Part Number: 210-3003S/S
- Interchange: 1/4″ ARO 210
- Body: 1/4″ Coupler
- Thread: 1/4″ Female NPT, FPT
- Type: One-Way Shut-Off
- Operation: Automatic push-to-connect (retract sleeve to disconnect)
- Material: 303 Stainless Steel
- Working Pressure: 300 PSI
- Temperature Range: -40F to +250F (Buna seal)
- Quantity: 1pc
- Origin: Made in USA
Why this coupler
- Automatic push-to-connect — which means single-handed connection; just push the plug in. Retract the sleeve to disconnect.
- ARO 210 interchange — which means it mates with industry-standard ARO 210-style 1/4″ air fittings.
- 303 stainless construction — which means strong corrosion resistance for washdown and harsh environments.
Frequently asked questions
What does this connect to?
It interchanges with ARO 210 Series plugs — a widely used 1/4″ air-coupler style.
What pressure is it rated for?
Rated to 300 PSI working pressure, -40F to +250F with Buna seals.
How does it connect?
Push the plug in to connect automatically; retract the sleeve to disconnect.
Ideal for shop air lines, pneumatic tools, and air service. Pair this coupler with a matching 1/4″ ARO 210 plug for a complete, leak-free connection.
Why buy from hpcouplers: Foster quality, responsive US-based support, accurate specs, fast shipping.
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