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

Product Description

The PARKER 821FR-4-BRN-RL is a push-on style air hose designed for compressed air and pneumatic service in industrial and trade environments. It features a 0.25-inch inside diameter and a 0.50-inch outside diameter, with a working pressure rating of 350 psi. The hose is constructed from synthetic rubber and carries a brown outer jacket for easy identification. It is sold in cut-to-length increments with a 25-foot minimum cut and a total coil length of 575 feet. Licensed trades and industrial maintenance technicians install this hose in pneumatic tool drops, air supply lines, and compressed air distribution systems.

This hose is suited for both light industrial and commercial applications where a flexible, push-on connection is required without the need for separate end fittings. The cut-to-length format makes it practical for jobs that require custom hose runs. It performs across a temperature range of -40 degrees F to 212 degrees F, making it appropriate for use in unheated facilities, outdoor service environments, and applications with moderate heat exposure. No barbed insert fittings are included; the hose relies on push-on style barbed fittings purchased separately.

Key Features

• Push-on design eliminates the need for clamps or swaged fittings at assembly
• 350 psi working pressure rated for standard compressed air service
• Temperature range of -40 degrees F to 212 degrees F for broad environmental compatibility
• Synthetic rubber construction provides flexibility and durability in shop and field use
• 0.25-inch ID with 0.50-inch OD for use with standard quarter-inch push-on barbed fittings
• Sold in cut-to-length increments from a 575-foot coil with a 25-foot minimum order

Compatibility

Designed for use with standard push-on barbed fittings sized for 0.25-inch inside diameter air hose. No end connections are included. Verify fitting compatibility before assembly.

Installation Notes

Installation is typically performed by pipefitters, pneumatic technicians, or industrial maintenance trades. Depressurize and lock out the compressed air supply before cutting or connecting hose. Use a clean, straight cut to ensure a proper seal on the push-on barbed fitting. Inspect the hose and fittings for damage before returning the system to service.