At eFlow USA, we’re proud to support the next generation of New York City high-rise construction with precision airflow solutions. For The Brook, a 52-story landmark reshaping the Downtown Brooklyn skyline, our team supplied over 500 eFlow-CAR Constant Airflow Regulators—each calibrated to deliver reliable 30 CFM performance across the tower’s residential systems.
The Brook delivers 591 rental apartments—including 178 affordable units—to one of New York’s most desirable neighborhoods.
The project team features: Beyer Blinder Belle (Architect), Cosentini Associates (MEP Engineer), and Suffolk Construction (General Contractor). eFlow-CARS were expertly Installed by Centrifugal Associates Group, with product sales through our representative, SRS Enterprises.
Conquering the Stack Effect at 600 Feet
Ventilating a 52-story tower presents a massive physics challenge: the “stack effect,” which can cause erratic airflow and energy waste in tall buildings. The Brook required a solution that guarantees stability from the ground floor to the penthouse. eFlow USA supplied over 500 5″ Constant Airflow Regulators (CARs) calibrated at 30 CFM. These pressure-independent valves automatically adjust to changes in static pressure, ensuring that every one of the 591 units receives the exact same code-compliant ventilation, regardless of their height in the tower.
eFlow-CAR at a Glance
- High-Rise Masterpiece: A 52-story proven application for 5″ CARs.
- Precise Calibration: Factory-set at 30 CFM to meet specific engineering requirements.
- Stack Effect Solution: Eliminates the need for on-site balancing in complex high-rise duct shafts.
- Energy Efficiency: Prevents the over-exhausting of conditioned air, a critical factor for LEED and energy compliance in skyscrapers.
- Learn More: eFlow-CAR Overview | Download eFlowUSA Product Catalog & Price List (PDF)
Project Stakeholders
- Developers: Witkoff Group & Apollo Global Management
- Project Architect: Beyer Blinder Belle
- Engineer: Cosentini Associates
- General Contractor: Suffolk Construction
- Installer of eFlow products: Centrifugal Associates Group
- Product Representative: SRS Enterprises
- Product sold: Over 500 5″ CARs (30 CFM)
Why eFlow-CARs Matter for Skyscrapers
- Vertical Consistency – The only passive way to guarantee consistent 30 CFM performance on Floor 2 and Floor 52.
- Tenant Comfort – Promotes High Indoor Air Quality and balanced ventilation for all high-rise apartments.
- Maintenance-Free – No electric sensors or motorized dampers to fail behind walls.
Project Overview
- Address: The Brook, 589 Fulton Street, Brooklyn, NY
- Building Type: Residential Skyscraper (New Construction)
- Status: Completed (Dec 2025)
- Stories: 52
- Units: 591 Apartments (30% Affordable)
- Scope: Supply of over 500 5″ CARs (30 CFM)
The Higher You Build, The More You Need eFlow
When the biggest names in real estate build the tallest towers in Brooklyn, they choose eFlow-CARs. We provide the invisible infrastructure that makes “Big Deal” projects livable, efficient, and code-compliant.
🌐 Website: eflowusa.net
🛒 Order Online: eflowshop.net
📧 Email: sales@eflowusa.net
📞 Call: 1-833-356-9872
📄Download eFlowUSA Product Catalog & Price List (PDF)
eFlow-CAR FACTS
eFlow-CAR is a simple solution to balancing ventilation systems. Constant Airflow Regulator is a device that automatically regulates airflows in ventilation systems to constant levels. The passive control element responds to duct pressure, and requires no electric sensors, pneumatic sensors or controls. eFlow-CARs promote high indoor air quality and energy savings.
- UL 2043 Classified
- Composed of fire resistant UL 94 ABS plastic
- Diameters offered: 3”, 4″, 5”, 6”, 8″, 10″
- Operating Pressure Range: 0.08 to 2.4 in w.g. (20-600Pa)
- Airflow settings: 15-765 CFM
- Temperature Limits: -22° to 140°F (-30° to 60°C)
- Suitable for both supply and exhaust applications
- No external power supply needed
- Field Adjustable CFM set point
- Capable of maintaining constant airflow within +- 5% for nominal airflow throughout the target operating pressure range of 0.08 to 2.4 in.
- Standard for Energy Efficient Compliance
American Aldes Alternative to Aldes CAR3, Aldes CAR3-S, Aldes CER3-R, Aldes CER3-S, Aldes CER3-S-F, Aldes CSR3-R, Aldes CSR3-S, Aldes CSR3-S-F, Aldes CEB3-WS, CEB3-WB, Aldes CEB3-CS, CEB3-CS-F, Aldes CSB3-WS, Aldes CSB3-WB, Aldes CSB3-CS, Aldes CSB3-CS-F, Aldes ZRT, equal to Aldes MR MAX Alternative to American Aldes: car ii, Equal to Nailer Constant Volume Regulator Nailer CVR CVR-SP – Constant Volume Regulator – Standard Pressure CVR-HP – Constant Volume Regulator – High Pressure CVR-LP – Constant Volume Regulator – Low Pressure CVR-GM – Constant Volume Regulator – Grille Mount CVR-FD – Constant Volume Regulator – w/ Fire Damper CVR-T – Constant Volume Regulator – Transition Collar Equal to young regulator Constant Volume Regulator CVR, young regulator CVD, CVD-S constant volume damper, CVDR: Rectangular Constant Volume Damper, 4011-CVR: Fresh Air Damper w/ a CVR, CVEF8, CVEF5, CVRF2, CVR-LP Constant Volume Regulator Low Pressure, CVR-HP Constant Volume Regulator High Pressure model cvrf5, model cvr8, cvp plus enhanced constant volume regulator, cvpfd constant volume regulator in a UL-rated assembly, cvpf5 enhanced constant volume regulator wall mount box, cvpf2 register box, cvd constant volume damper, cvdr rectangular constant volume damper, cvrf8, cvrf5, cvrf2, CVR, CVRF1, CVRF2, CVRF5, CVRF8 Alternative to greenheck ABD, ABD-FD, ABD-RB, ABD-T, ABD-Z1, ABD-Z2.
Automatic balancing damper, automatic airflow balancing, automatic balancing valve Equal to United Enertech constant volume regulator model, precision flow model, CR, CR-LP, CR-HP, CRB-10-S, CRB-10-S-CD, CRB-10-E, CRB-10-E-CB, CRB-10-E.
