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Auto-Flo 23/24 Series, Aro 210 Interchange Swing Coupling, Female Half With Safety Vent, -04 Coupling, 1/4-18 Female NPT

Description & Features

The Auto-Flo 23/24 Series, Aro 210 Interchange Swing Coupling is expertly designed to ensure optimal performance in industrial applications. This female half coupling features a 1/4-18 Female NPT thread and includes a safety vent for secure and efficient disconnection. Constructed from zinc and nickel-plated steel, it offers excellent durability and corrosion resistance. The Buna-N seal material provides reliable sealing under pressures up to 360 PSI, making it compatible with Aeroquip FD41 Series and Aro 210 plugs.

This coupling meets the ISO Standard 4414 for dimensional requirements and features a 360° swivel design to eliminate hose kinking. It supports high flow rates with minimal pressure drop, ensuring peak performance. The automatic sleeve enables one-hand push-to-connect operation, while the swing mechanism allows easy connection and disconnection by angling and straightening the coupling halves.

SKU: 20500291

Supplier Part Number (MPN): R20500291

Alternate Part Numbers: C1ZY92, MI-02902316, MINO-00691X12450

Specifications

A 2.54	B 0.78	Coupling Size -04	Brand RTC North America Ltd	Brand RTC North America	Pack Size 1.00	UOM EA	Seal Material Buna-N	Supplier Part Number R20500291	Thread 1 1/4-18	Thread Sealant No	Alternate Part Numbers Alternate Part Number C1ZY92, Alternate Part Number MI-02902316, Alternate Part Number MINO-00691X12450	Product Weight 0.23 lbs

Product Questions & Answers (3)

Question by: Shane W on Apr 30, 2025, 11:34 AM

this coupling got a safety vent built in, does that mean it bleeds off pressure before it fully disconnects?

Answer by: Customer Support on May 2, 2025, 6:07 AM

Yes, and that's exactly what the safety vent is there for. When you go to disconnect, retracting the release sleeve and swinging the assembly to the angled position allows any trapped air to vent before the halves fully separate. It follows ISO Standard 4414 requirements, so that venting behavior is built into how the swing design works, not something you have to manage manually.

Question by: Steve B on Feb 15, 2026, 8:52 AM

got a box of ARO 210 and Tru-Flate male plugs in the shop, will this female coupler hook up to either one?

Answer by: Customer Support on Feb 16, 2026, 4:56 PM

Compatibility is the main selling point here. The Auto-Flo 23/24 Series female half is built to interchange with Industrial, ARO 210, and Tru-Flate style male plugs, and it meets the dimensional requirements of ISO 6150 Series B.

Question by: Tommy H on Jun 26, 2025, 1:53 PM

Will this connect to a standard Aro 210 fitting, or do I need some kind of adapter?

Answer by: Customer Support on Jun 27, 2025, 9:25 PM

Yes, this female coupling is designed to operate directly with Industrial, ARO 210, and Tru-Flate Interchange plugs/males. No adapter should be necessary for standard connections.