307(Ratings & Reviews)
Ventilation and Attic Vents
Help remove excess heat and moisture to protect your roof from premature deterioration
Attic Ventilation 101: See the benefits of attic ventilation
A new roof is more than just shingles.
Ventilation and Attic Vents
Exhaust
Plastic Ridge Vents
COBRA® RIGID VENT 3™
Premium 4′ (1.21 m) plastic ridge vent for warmer climates
COBRA® SNOWCOUNTRY®
4′ (1.21) plastic ridge vent for colder climates
COBRA® SNOWCOUNTRY® ADVANCED
Premium 4′ (1.21 m) plastic ridge vent for colder climates
Plastic Ridge Vents
MASTER FLOW® ROOF LOUVER SSB960A – ALUMINUM SLANT-BACK
Aluminum Super Slant-Back Roof Vent
MASTER FLOW® ROOF LOUVER SSB960G – GALVANIZED SLANT-BACK
Galvanized Super Slant-Back Roof Vent
MASTER FLOW® ROOF LOUVER IR61 – PLASTIC SLANT-BACK
Low-Profile Resin Slant-Back Roof Vent
MASTER FLOW® ROOF LOUVER IR65 – PLASTIC SLANT-BACK
Premium Plastic Slant-Back Roof Vent
MASTER FLOW® ROOF LOUVER R50A – ALUMINUM SQUARE THROAT
Aluminum Square-Top Roof Vent with Square Throat
MASTER FLOW® ROOF LOUVER RT65 – PLASTIC SQUARE-TOP
Square-top Plastic Roof Vent
MASTER FLOW® ROOF LOUVER RV50 – METAL ROUND THROAT
Aluminum or Galvanized Square-Top Roof Vents with Round Throat
MASTER FLOW® HIGH-CAPACITY DOME VENT
Galvanized Steel Dome Roof Vent with Screen
Roll Ridge Vents
COBRA® EXHAUST VENT
Mesh roll ridge vent for all climates
COBRA RIDGERUNNER®
Plastic roll ridge vent for all climates
Aluminum Ridge Vents
MASTER FLOW® 10′ ALUMINUM RIDGE VENT – AR10
10′ (3.05 m) Aluminum Ridge Vent
MASTER FLOW® ALUMINUM RIDGE VENT – JOINT STRAPS
Helps secure aluminum ridge vent sections in place
MASTER FLOW® ALUMINUM RIDGE VENT – END/CONNECTOR PLUGS
Terminates/connects aluminum ridge vent sections
Hip Vents
COBRA® HIP VENT
4′ (1.21 m) plastic hip vent for all climates
Wind Turbine Accessories
MASTER FLOW® WIND TURBINE BASE – SBX12
Base for use with 12″ (305 mm) galvanized wind turbines
MASTER FLOW® WIND TURBINE HEAD – GT12E
Replacement head for use with 12″ (305 mm) galvanized wind turbines
MASTER FLOW® WIND TURBINE WEATHER CAP – WC12
Weather cap for use with 12″ (305 mm) galvanized wind turbines
Rotary Turbines
MASTER FLOW® 12” EXTERNALLY-BRACED GALVANIZED WIND TURBINES
12″ (305 mm) galvanized externally braced wind turbine
MASTER FLOW® 12″ INTERNALLY-BRACED GALVANIZED WIND TURBINES
12″ (305 mm) galvanized, internally braced wind turbine
MASTER FLOW® 12″ INTERNALLY-BRACED ALUMINUM WIND TURBINES – AIC12
12″ (305 mm) aluminum, internaly braced wind turbine
MASTER FLOW® 14″ INTERNALLY-BRACED ALUMINUM WIND TURBINES
14″ (357 mm) aluminum, internally braced wind turbine
Power Vents
Power Attic Vents
MASTER FLOW® POWER ATTIC VENT – ERV4 ROOF MOUNT
1,000 CFM Airflow for up to 1,600 sq. ft. of Attic Space
MASTER FLOW® POWER ATTIC VENT – ERV5 ROOF MOUNT
1,250 CFM Airflow, for up to 2,200 sq. ft. of Attic Space
MASTER FLOW® POWER ATTIC VENT – ERV6 ROOF MOUNT
1,500 CFM Airflow, for up to 2,800 sq. ft. of Attic Space
MASTER FLOW® POWER ATTIC VENT – ERV4HT ROOF MOUNT
1,000 CFM airflow with H-stat/T-stat for up to 1,600 sq. ft. of attic space
MASTER FLOW® POWER ATTIC VENT – ERV5HT ROOF MOUNT
1,250 CFM airflow with H-stat/T-stat for up to 2,220 sq. ft. of attic space
MASTER FLOW® POWER ATTIC VENT – ERV6HT ROOF MOUNT
1,500 CFM airflow with H-stat/T-stat for up to 2,800 sq. ft. of attic space
MASTER FLOW® WI-FI ATTIC VENT ROOF MOUNT
Includes Master Flow® QUICKCONNECT™ Wi-Fi Technology
MASTER FLOW® POWER ATTIC VENT – EGV5 GABLE MOUNT
1,450 CFM Airflow for up to 2,300 sq. ft. of Attic Space
MASTER FLOW® POWER ATTIC VENT – EGV6 GABLE MOUNT
1,600 CFM airflow for up to 3,000 sq. ft. of Attic Space
MASTER FLOW® POWER ATTIC VENT – EGV6HT GABLE MOUNT
1,600 CFM airflow with H-stat/T-stat for up to 3,000 sq. ft. of Attic Space
MASTER FLOW® WI-FI ATTIC VENT GABLE MOUNT
Includes Master Flow® QUICKCONNECT™ Wi-Fi Technology
MASTER FLOW EZ COOL™ PLUG-IN POWER ATTIC VENT – ROOF MOUNT
Installs without the need for electrical work
MASTER FLOW EZ COOL™ PLUG-IN POWER ATTIC VENT – GABLE MOUNT
Installs without the need for electrical work
Solar-Powered Attic Vents
MASTER FLOW® GREEN MACHINE™ HIGH-POWER SOLAR ROOF VENT, SOLAR-POWERED…
Low-profile Polypropylene Roof-mount Solar Vent
MASTER FLOW® GREEN MACHINE™ HIGH-POWER SOLAR ROOF VENT, DUAL-POWERED…
Low-profile Polypropylene Roof-mount Dual Power Vent
MASTER FLOW® GREEN MACHINE™ SOLAR-POWERED ROOF VENT – ERVSOLAR
Roof-mount Solar Vent
MASTER FLOW® GREEN MACHINE™ DUAL-POWERED ROOF VENT – ERVHYBRID
Roof-mount Dual Power Vent
MASTER FLOW® GREEN MACHINE™ SOLAR-POWERED GABLE VENT – PGSOLAR
Gable-mount Solar Vent
Power Vent Accessories
MASTER FLOW® REPLACEMENT HUMIDISTAT-H1
Adjustable humidistat for Master Flow® single-speed power attic vents
MASTER FLOW® REPLACEMENT THERMOSTAT-PT6
Adjustable Thermostat for Master Flow® single-speed power attic vents
MASTER FLOW® REPLACEMENT HUMIDISTAT / THERMOSTAT-HT1
Adjustable humidistat/thermostat for Master Flow® single-speed power attic vents
MASTER FLOW® REPLACEMENT MOTORS
Replacement motors for current and previous Master Flow® Power Attic Vent models…
MASTER FLOW® AUTOMATIC SHUTTER-SGM20
Automatic aluminum shutter for power gable vents
Whole House Fans and Accessories
MASTER FLOW® TIMER – WHT36
For Master Flow® 30″(609 mm) Belt Drive and whole house fans with Two-Speed Control Switch…
MASTER FLOW® BELT DRIVE WHOLE HOUSE FAN – 30BWHFS
Adjustable Thermostat for Master Flow® single-speed power attic vents
MASTER FLOW® CONTROL SWITCH – BWS2
For all Master Flow® Whole House Fans
MASTER FLOW® DIRECT DRIVE WHOLE HOUSE FAN – WHFS24M
4,500 CFM airflow for homes up to 2,500 sq. ft
MASTER FLOW® WHOLE HOUSE FAN SHUTTERS – S24 / S30
Available for all Master Flow® Whole House Fans
Intake
Rooftop Intake Vents
COBRA INTAKEPRO®
Roll intake vent for all climates
Closeable Soffit Vent
MASTER FLOW® EMBERSHIELD®
Helps reduce the risk of wildfire embers being drawn into the attic
Soffit/Undereave Vents
MASTER FLOW® ALUMINUM SOFFIT / UNDEREAVE VENTS
Aluminum rectangular soffit/undereave vent with screen
MASTER FLOW® ALUMINUM CONTINUOUS UNDEREAVE VENTS – LSV8
8′ (2.44 m) continuous aluminum soffit/undereave vent
MASTER FLOW® PLASTIC SOFFIT/UNDEREAVE VENT
High-impact plastic oval soffit/undereave vent
Gable Wall and Circular Louvers
Gable Louvers
MASTER FLOW® ALUMINUM GABLE LOUVERS
Durable Aluminum Gable/Wall Vents
MASTER FLOW® PLASTIC GABLE LOUVERS
One-piece thermoformed plastic gable wall vents
Circular Louvers
MASTER FLOW® PLASTIC CIRCULAR LOUVERS – RLSC
Snap-in plastic circular louver vents
Safety Caps for Chimneys
MASTER FLOW® CHIMNEY CAPS – ADJUSTABLE
Large and small adjustable-size chimney caps
MASTER FLOW® PLASTIC GABLE LOUVERS
One-piece thermoformed plastic gable wall vents
MASTER FLOW® CHIMNEY CAPS – STAINLESS STEEL
Stainless steel chimney caps with single-piece hood
MASTER FLOW® LEG KITS FOR STAINLESS & GALVANIZED STEEL CHIMNEY CAPS
Leg Kit for stainless and galvanized steel chimney caps
Foundation Vents
MASTER FLOW® AUTOMATIC FOUNDATION VENT – FVRABL
Automatically ventilates crawlspaces based on temperature
MASTER FLOW® BLOCK STYLE FOUNDATION VENT – BVSII
Galvanized steel and aluminum block style foundation vent
MASTER FLOW® FOUNDATION VENT COVER – FVC168
Aluminum cover for most foundation vents
MASTER FLOW® GRATE STYLE FOUNDATION VENT – 500
Die-cast aluminum grate style foundation vent with lintel
MASTER FLOW® GRILL STYLE FOUNDATION VENT – LW1
Die-cast aluminum grill style foundation vent
MASTER FLOW® GRILL STYLE FOUNDATION VENT WITH LINTEL – LW1L
Die-cast aluminum grill style foundation vent with lintel
MASTER FLOW® PLASTIC REPLACEMENT FOUNDATION VENT – PNM168
Plastic grill style foundation vent with push/pull lever
MASTER FLOW® PLASTIC SLIDER FOUNDATION VENT – PS168BL
Plastic grate style foundation vent with lintel
MASTER FLOW® POWER FOUNDATION VENT – PFV1
Powered crawlspace ventilation for peak moisture conditions
Other Vents and Accessories
Goose Neck Vents
MASTER FLOW® ALUMINUM GOOSE NECK VENTS
Master Flow® Aluminum Goose Neck Vents
MASTER FLOW® BLACK PAINTED GOOSE NECK VENTS
Master Flow® Black Painted Goose Neck Vents
MASTER FLOW® GAVALNIZED GOOSE NECK VENTS
Master Flow® Galvanized Goose Neck Vents
Zinc Moss & Mildew Prevention
MASTER FLOW® ZINC MOSS & MILDEW PREVENTER – NMM50
For asphalt, shake, or tile roofs.
Versa Caps
MASTER FLOW® VERSA CAPS
Aluminum model for pipe with an outside diameter of 11 7/8” – 14” (302 mm – 356 mm)
Storm Collars
MASTER FLOW® STORM COLLARS
Master Flow® Storm Collars
Vent Caps
MASTER FLOW® VENT CAPS
Used to cap pipes for rain, snow, and debri protection
Roof Flashing
MASTER FLOW® ROOF FLASHING WITH TAPERED STACK
30 Gauge specified .013 – .015
All Purpose Vents
MASTER FLOW® ALL PURPOSE VENTS
26-gauge – specified .019 16” x 16” (406 mm x 406 mm) base size
Roof Jacks
MASTER FLOW® ROOF JACKS WITH VENT CAP – NO PITCH – F26RJVC
26-gauge Roof Jacks with vent cap for venting kitchen, bath fans, and attic ventilation.
MASTER FLOW® ROOF JACKS WITH VENT CAP – 26RJVC
26-gauge Roof Jacks with vent cap are versatile for kitchen, dryer, or other exhaust applications.
MASTER FLOW® ROOF JACKS WITH VENT CAP – RJVC
28-gauge Roof Jacks with vent cap are perfect for venting kitchen or bath fans.