For a medium attic where a low profile look and a GAF warranty with labor cover matter more than airflow per dollar.
Price checked November 9, 2026. As an Amazon Associate we earn from qualifying purchases.
Every Master Flow GreenMachine High-Power model we rank, smallest first. Ratings compare each against its own mount.
| Model | Airflow | Rating | Price |
|---|---|---|---|
| Master Flow PRSOLAR2 Solar Roof Vent (this one) | 750 CFM | 2.3/5 | $460.54 |
| Master Flow PRHYBRID2 Dual Roof Vent | 750 CFM | 2.4/5 | $468 |
The rating comes from 5 measured or published factors, each scored 0-100 against fixed reference points for its mount. How we rank explains each one.
| Model number | PRSOLAR2 |
|---|---|
| Airflow | |
| Mount | Roof |
| Airflow | 750 CFM |
| Attic area | 1,070 sq ft |
| Power | |
| Panel | 35 W |
| Thermostat | Yes |
| AC backup | No |
| Build | |
| Weight | 23 lb |
| Warranty | 6 years |
For a medium attic where the owner wants a roofing brand fan that runs around the clock and will pay for the wiring. Plug in hybrid fans cost less and move more air.
Amazon $468A plain solar only roof fan for a small attic. Other fans with bigger panels and adapters cost less.
Amazon $369.99For a small attic where the owner wants round the clock venting from a roofing brand. Other hybrid fans move far more air for less.
Amazon $418Compare the Master Flow PRSOLAR2 Solar Roof Vent with any other solar attic fan →
More from Master Flow: every Master Flow product ranked.
