Master Flow® Green Machine™ Dual‑Powered Roof Vent ‑ ERVHYBRID Specs
Master Flow® Green Machine™ Dual‑Powered Roof Vent ‑ ERVHYBRID Docs
Master Flow® Green Machine™ Dual‑Powered Roof Vent ‑ ERVHYBRID Videos
Why Master Flow® Green Machine™ Dual‑Powered Roof Vent ‑ ERVHYBRID?
This unique dual-powered vent switches automatically between solar and house power to help reduce excessive heat and moisture in the attic during cloudy weather or at night. When on solar power, it provides up to 500 CFM airflow1 and when on house power 750 CFM airflow1. Includes thermostat control and helps reduce the energy costs of purely house-powered vents. It’s also an eligible component of GAF residential enhanced warranties.

24/7 COOLING
Works whether the sun is out or not

USES 80% LESS ELECTRICITY
Versus typical electric-powered ventilators when on house power

NO-HASSLE OPERATION
Automatically switches between solar power and house power
Eligible accessory product in the Attic Ventilation Category of GAF Residential Enhanced and WindProven™ Limited Warranties*

Earn GAF Rewards when you buy GAF Master Flow® ventilation products
Master Flow® ventilation products are eligible for GAF Rewards points. Visit gaf.com/Rewards for a complete list of qualifying products.
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Where to buy
Find a GAF distributor near you.