STL PRO-1.5X
$699.00
See the specs
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Airflow*
1479 CFM
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HVI-916 Airflow (CA Title 24)**
1040 CFM
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dBA
Hi: 37.2
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Energy Efficiency
66.7 Watts
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Grille
16 x 16
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Attic Venting
1.98 Sq.ft net free area
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Covers Up To***
439 SQFT to 739 SQFT / Small Rooms
STL PRO-3.3X
$1,099.00
See the specs
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Airflow*
Hi: 3159 CFM / Low: 1980 CFM
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HVI-916 Airflow (CA Title 24)**
Hi: 2350 CFM / Low: 1470 CFM
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dBA
Hi: 47.4 / Low: 36.1
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Energy Efficiency
Hi: 264 Watts / Low: 74.6 Watts
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Grille
16 in. x 24 in.
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Attic Venting
4.22 Sq.ft net free area
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Covers Up To***
1053 SQFT to 1580 SQFT / Small Homes
STL PRO-5.5X
$1,399.00
See the specs
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Airflow*
Hi:5044 CFM / Med:4238 CFM
Low:2870 CFM -
HVI-916 Airflow (CA Title 24)**
Hi: 3750 CFM / Med: 3070 CFM / Low: 2010 CFM
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dBA
Hi: 50.7 / Med: 45.7 / Low: 35.6
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Energy Efficiency
Hi: 490 Watts / Med: 268 Watts
Low: 88 Watts -
Grille
16 in. x 32 in.
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Attic Venting
6.73 Sq.ft net free area
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Covers Up To***
1681 SQFT to 2522 SQFT / Medium/Large Homes
See the entire Stealth Pro Line
The Stealth Pro is the second line in the Pro series. The models’ CFM range and speed options are similar to the Trident Pro series, along with the controls also being included in the box. The major component that separates the Stealth Pro series from the Trident series is the electronically commutated (ECM) AC/DC brushless motor. The motor contains a microchip that allows the motor to cycle from alternating current, to direct current. This allows for amazing energy savings! Another benefit of this “brushless” motor is less moving parts, which means fewer parts at risk of damage. The Stealth Pro line also comes with an industry-leading 15-year motor warranty!
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Airflow*
Hi: 2541 CFM / Low: 2018 CFM
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HVI-916 Airflow (CA Title 24)**
Hi: 1920 CFM / Low: 1510 CFM
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dBA
Hi: 43.2 / Low: 37.2
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Energy Efficiency
Hi: 157 Watts / Low: 82.3 Watts
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Grille
16 in. x 20 in.
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Attic Venting
3.39 Sq.ft net free area
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Covers Up To***
847 SQFT to 1271 SQFT / Large Rooms
STL PRO-2.5X
$849.00
See the specs
STL PRO-4.8X
$1,299.00
See the specs
-
Airflow*
Hi:4280 CFM / Med:3500 CFM
Low:2361 CFM -
HVI-916 Airflow (CA Title 24)**
Hi: 3130 CFM / Med: 2560 CFM / Low: 1670 CFM
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dBA
Hi: 47.4 / Med: 43.2 / Low: 33.0
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Energy Efficiency
Hi: 408 Watts / Med: 225 Watts
Low: 73.9 Watts -
Grille
16 in. x 32 in.
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Attic Venting
5.71 Sq.ft net free area
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Covers Up To***
1427 SQFT to 2140 SQFT / Medium Homes
STL PRO-6.0X
$1,499.00
See the specs
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Airflow*
Hi:5587 CFM / Med:4262 CFM
Low:3428 CFM -
HVI-916 Airflow (CA Title 24)**
Hi: 4030 CFM / Med: 3070 CFM / Low: 2440 CFM
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dBA
Hi: 51.1 / Med: 45.7 / Low: 38.5
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Energy Efficiency
Hi: 462 Watts / Med: 210 Watts
Low: 113 Watts -
Grille
16 in. x 38 in.
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Attic Venting
7.45 Sq.ft net free area
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Covers Up To***
1862 SQFT to 2794 SQFT / Large Home
STL PRO-7.0X
$1,599.00
See the specs
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Airflow*
Hi:6996 CFM / Med:5448 CFM
Low:4308 CFM -
HVI-916 Airflow (CA Title 24)**
Hi: 5200 CFM / Med: 3990 CFM / Low: 3180 CFM
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dBA
Hi: 54.3 / Med: 47.4 / Low: 41.4
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Energy Efficiency
Hi: 725 Watts / Med: 319 Watts
Low: 166 Watts -
Grille
16 in. x 38 in.
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Attic Venting
9.33 Sq.ft net free area
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Covers Up To***
2332 SQFT to 3498 SQFT / Large/Extra Large Homes
*Listed airflow specs are tested via a device that is calibrated to NIST standards.
**HVI-916 airflow specs are to be used by energy consultants and builders for CA Title 24 modeling
***Recommended SQFT Coverage @ 2 CFM per SQ FT