Parker 821FR-4-WHT-RL Push-on Air Hose 0.25 in Id 350 Psi

Product Description

The PARKER 821FR-4-WHT-RL is a push-on air hose designed for compressed air distribution in industrial and commercial environments. With a 0.25 inch inside diameter and a 0.50 inch outside diameter, this hose handles a working pressure of 350 psi and operates across a temperature range of -40 degrees F to 212 degrees F. Constructed from white synthetic rubber, it is sold cut-to-length in 1-foot increments with a 25-foot minimum cut length from a 575-foot master coil. Licensed trades and maintenance technicians install this hose for pneumatic tool supply, air distribution headers, and equipment drop lines.

This hose is suited for residential, commercial, and light industrial pneumatic systems where a flexible, push-on style air line is required. The push-on design eliminates the need for threaded end fittings during hose assembly, simplifying installation in tight or high-volume routing applications. The white color aids visual identification in multi-hose installations. It is a practical choice for compressor room distribution, production floor air drops, and service bay supply lines where flexible routing and pressure reliability are priorities.

Key Features

• Push-on construction for tool-free hose-to-fitting assembly
• 350 psi working pressure rated for compressed air service
• Wide temperature range: -40 degrees F to 212 degrees F
• 0.25 inch inside diameter, 0.50 inch outside diameter
• White synthetic rubber construction for easy line identification
• Sold in 1-foot increments with a 25-foot minimum cut length

Compatibility

Designed as an OEM-style replacement or new-install push-on air hose for standard 0.25 inch ID pneumatic fittings and push-on barb connectors used in compressed air distribution systems.

Installation Notes

Installation should be performed by a qualified technician or pipefitter familiar with compressed air system standards. Depressurize and lock out the air supply before cutting or connecting hose sections. Use a clean, square cut and ensure full barb engagement when seating hose onto push-on fittings. Do not exceed the rated 350 psi working pressure, and verify the system temperature stays within the -40 degrees F to 212 degrees F operating range.