eFlow USA supplied hundreds of 4″ eFlow-CARs calibrated to 30 CFM directly to installer Restore Services Inc (RSI) for the crucial retrofit of 50 West 131st Street in New York City. This 8-story residential high-rise, originally built in 1989 and explicitly dedicated as an affordable housing community for low-income seniors and individuals with disabilities, benefits from modernized indoor air quality and energy efficiency across its 100 units. 
50 West 131st Street, NYC – eFlow-CAR | Picture credit to: https://wikipedia.org/Engineering Modern Comfort in NYC
For a vital affordable housing community, maintaining balanced ventilation and superior indoor air quality is a standard expectation. To meet the rigorous demands of the 50 West 131st Street retrofit, eFlow USA provided hundreds of 4″ eFlow-CARs at 30 CFM. These passive regulators guarantee continuous, precisely balanced airflow, protecting the 100 units from over-ventilation and mechanical noise without requiring power or complex sensors.
eFlow-CAR at a Glance
▪️ Product Models: 4″ Constant Airflow Regulators (eFlow-CAR)
▪️ Applications: Airflow control (Retrofit)
▪️ Performance: Passive regulation; factory-calibrated to various CFM settings; requires no sensors or power
Project Stakeholders
▪️ Product Representative: Direct Sale to Contractor
▪️ Installer of eFlow products: Restore Services Inc (RSI)
▪️ Product sold: Hundreds of 4″ eFlow-CARs at 30 CFM
Why eFlow-CARs Matter
▪️ Vulnerable Resident Protection: Provides consistent, high-quality indoor air for seniors and individuals with disabilities, ensuring a healthier and more comfortable living environment.
▪️ Seamless Modernization: Easily integrates into the existing 1989 ventilation infrastructure, bringing older buildings up to modern code standards efficiently.
▪️ Maintenance-Free: Passive operation provides lasting reliability and energy efficiency.
Project Overview
▪️ Address: 50 West 131st Street, NYC
▪️ Building Type: Residential High-Rise Housing Complex (Retrofit)
▪️ Expected Completion: Completed (Originally Built in 1989)
▪️ Number of Floors: 8
▪️ Number of Units: 100 units (Affordable housing for low-income seniors and individuals with disabilities)
▪️ Scope: Supply of hundreds of 4″ eFlow-CARs at 30 CFM
Defining the Standard for Premier Developments
From boutique luxury condominiums to elite high-rise residential properties, eFlow-CARs deliver the precise airflow necessary for modern building codes and premium resident comfort.
🌐 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
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