Foster 210-51, 1/4" ARO Plug x 1/4" Push-On Hose Stem, 210 Series, Steel

Reliable 1/4" air connections that interchange with ARO 210 Series couplers and plugs. The Foster 210-51 is a steel 1/4" plug 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: 210-51
• Interchange: 1/4" ARO 210
• Body: 1/4" Plug
• Thread: 1/4" Push-On Hose Stem
• Type: One-Way Shut-Off
• Material: Steel
• Working Pressure: 300 PSI
• Temperature Range: -40F to +250F (Buna seal)
• Quantity: 1pc
• Origin: Made in USA

Why this plug

• ARO 210 interchange — which means it plugs into any matching ARO 210-style 1/4" socket.
• Steel — which means durable service under repeated high-pressure cycling.
• Push-on hose stem — secure grip on push-on hose, no clamp required.

Frequently asked questions

What does this connect to?
It interchanges with ARO 210 Series sockets — 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.

Ideal for shop air lines, pneumatic tools, and air service. Pair this plug with a matching 1/4" ARO 210 socket for a complete, leak-free connection.

Why buy from hpcouplers: Foster quality, responsive US-based support, accurate specs, fast shipping.