Description
Johnson Controls F-300-21 Barbed Coupling Overview
The Johnson Controls F-300-21 is a barbed coupling designed to provide a secure, leak-resistant connection between tubing of two different diameters — 3/8″ on one end and 1/4″ on the other. This reducing barbed coupling is an essential fitting for pneumatic control systems, HVAC tubing runs, and fluid control applications where a reliable transition between tube sizes is required.
Key Features
- Reducing barbed coupling design for connecting 3/8″ and 1/4″ tubing
- Barbed ends provide a secure, pull-resistant grip on flexible tubing
- Compact form factor for use in tight equipment spaces
- Compatible with standard pneumatic and fluid control tubing
- Genuine Johnson Controls replacement part — SKU F-300-21
Typical Applications
- Pneumatic HVAC control systems
- Building automation tubing connections
- Fluid and air line transitions between differing tube diameters
- OEM replacement in Johnson Controls pneumatic control installations
Product Specifications
- Brand: Johnson Controls
- SKU / Part Number: F-300-21
- Type: Barbed Reducing Coupling
- Connection Size: 3/8″ x 1/4″
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