Hart Cooley 672-30x8 Return Air Grille 30 Inches X 8 Inches 1/2 Inches Fin Spacing 40 Degree

Product Description

The Hart Cooley 672-30x8 is a stamped-face return air grille designed for residential HVAC systems. It measures 30 inches wide by 8 inches tall at the grille opening, with overall dimensions of 31 and 3/4 inches wide by 9 and 3/4 inches tall and 5/16 inches deep. This grille is built for return air applications where consistent airflow and a clean wall or ceiling appearance matter. HVAC technicians and installers rely on this type of grille to draw conditioned air back to the air handler or furnace without restricting flow or creating excessive static pressure. The 672-30x8 is constructed entirely from steel, giving it the structural durability needed for long-term use in both new construction and retrofit HVAC projects. The stamped face provides a smooth, uniform look that fits standard residential interiors. Fins are spaced at 1/2 inch intervals and set at a 40-degree angle, which is a common configuration for optimizing free area while managing airflow direction. This fin geometry helps the grille deliver a rated airflow range of 327 to 653 CFM, with face velocity between 300 and 600 feet per minute. Pressure loss across the grille ranges from 0.019 to 0.074 inches of water column, which is within acceptable limits for most residential duct systems. The bright white finish blends with standard interior trim and drywall finishes, reducing the need for touch-up painting after installation. A 5/16 inch margin turnback is included, allowing the grille to overlap the duct opening for a flush, professional fit. This feature simplifies rough-in work by providing a small margin of tolerance on framed openings. The 672-30x8 is a straightforward, reliable return air grille suited for residential forced-air HVAC installations where consistent performance and easy installation are priorities.

• All-steel construction for long-lasting durability in residential HVAC return air applications
• 1/2 inch fin spacing at 40 degrees delivers 327 to 653 CFM airflow with low pressure loss
• 5/16 inch margin turnback allows for clean, flush installation over framed duct openings

Product Highlights

The Hart Cooley 672-30x8 return air grille combines all-steel durability with a stamped face design and optimized fin geometry for reliable residential airflow performance. Its bright white finish and margin turnback make installation clean and straightforward for HVAC professionals.

Product Information

Standard Information

• Brand: HART COOLEY
• Manufacturer Part Number: 672-30x8

Technical Specifications

• Series/Model: 672
• Style: Stamped Face
• Material: Steel
• Finish/Color: Bright White
• Grille Size: 30 inches Width x 8 inches Height
• Overall Dimensions: 31 and 3/4 inches Width x 9 and 3/4 inches Height x 5/16 inches Depth
• Fin Spacing: 1/2 inch
• Fin Angle: 40 degrees
• Airflow Rating: 327 to 653 CFM
• Face Velocity: 300 to 600 FPM
• Pressure Loss: 0.019 to 0.074 inches water column
• Margin Turnback: 5/16 inch
• Application: Residential
• Package/Shipping Volume: 0.092 cubic foot