Parker 821-4-RL Push-on Air Hose 1/4 in Id 350 Psi

Product Description

The PARKER 821-4-RL is a push-on air hose designed for compressed air distribution in industrial and trade service environments. Built from synthetic rubber, this hose carries a 1/4 inch inside diameter and an outside diameter of 0.5 inches, making it compatible with standard push-on fittings that require no clamps or tools for attachment. It is rated to 350 psi working pressure and handles a temperature range of -40 to 212 degrees F, allowing use in both cold-climate outdoor applications and high-heat shop environments. Licensed HVAC technicians, plumbers, and general contractors commonly specify this hose for pneumatic tool supply lines and equipment air feeds where a clean, secure push-on connection is preferred.

This hose is sold cut-to-length from a 450-foot coil, priced in 1-foot increments with a 25-foot minimum cut length. It is suited for light-to-medium-duty compressed air applications in residential and commercial service settings. Common install scenarios include shop air lines, pneumatic control systems, and portable compressor drops where routing flexibility and a compact hose diameter are needed. The black synthetic rubber construction resists weathering and abrasion in exposed runs.

Key Features

• Push-on design attaches without clamps or crimp tools
• 1/4 inch inside diameter fits standard push-on air fittings
• 350 psi working pressure rating for compressed air service
• Operating range of -40 to 212 degrees F for wide environmental compatibility
• Synthetic rubber construction resists abrasion and weathering
• Cut-to-length from coil stock with 25-foot minimum order increment

Compatibility

Designed for use with standard push-on air hose fittings sized for 1/4 inch ID hose. No specific model or system compatibility was provided in the product data; confirm fitting series compatibility before ordering.

Installation Notes

Installation is performed by trade professionals or qualified service technicians. Depressurize the air system completely before cutting, routing, or connecting this hose. Push-on hose requires no clamps, but fittings must be fully seated to achieve rated pressure performance. Inspect the cut end for squareness and deburr if needed before seating onto the fitting barb.