Hart Cooley hc-a618ms-8x4w Register 8x4 Inches

Product Description

The HART COOLEY hc-a618ms-8x4w is an aluminum straight blade vertical fin register with a multi-shutter (MS) damper, designed for residential and light commercial HVAC supply air applications. The register features a straight blade configuration with 2/3-inch blade spacing and mounts over an 8 x 4 inch duct opening. The overall width of 9.75 inches provides a clean finish around the duct collar. HVAC technicians and installers use this register to control and direct conditioned airflow into occupied spaces while the integrated MS damper allows for manual airflow adjustment.

This register is suited for floor, wall, or ceiling supply air installations in forced-air HVAC systems. The vertical fin blade orientation helps direct airflow horizontally across the room. Its aluminum construction keeps weight low at 0.875 pounds, making it straightforward to handle and install in both new construction and retrofit applications. The 7.5-inch duct width accommodates standard rectangular duct collars of that dimension.

Key Features

• Straight blade, vertical fin design for horizontal airflow distribution
• Integrated MS damper for manual airflow control
• Aluminum construction for corrosion resistance and lightweight handling
• 2/3-inch blade spacing for balanced airflow diffusion
• Overall width of 9.75 inches fits standard 8 x 4 inch duct openings with overlap border

Compatibility

Designed as an OEM-style replacement or new-installation register for standard 8 x 4 inch rectangular supply air duct collars in residential and light commercial forced-air HVAC systems.

Installation Notes

Installation is typically performed by a licensed HVAC technician or qualified installer. Power down the air handling equipment before beginning register replacement or ductwork modifications. Verify the duct collar dimensions match the 7.5-inch duct width before mounting. Secure the register with appropriate fasteners and confirm the damper blade moves freely before restoring system operation.

Technical Specifications

• Size (Duct Opening): 8 x 4 inches
• Duct Width: 7.5 inches
• Overall Width: 9.75 inches
• Blade Type: Straight
• Blade Spacing: 2/3 inch
• Damper Type: MS (Multi-Shutter)
• Material: Aluminum
• Shipping Weight: 0.875 pounds
• UNSPSC Code: 40101504

Standard Information

• Brand: HART COOLEY
• Manufacturer Part Number: hc-a618ms-8x4w