- residential
- Ventilation Accessories
- Attic Vents
- Dayus DALTL-30 1 Inch Louvers with Flange Frame and 30 Degree Blades

Dayus DALTL-30 1 Inch Louvers with Flange Frame and 30 Degree Blades
The DALTL-30 is a fully extruded 1 inch deep louver with fixed 30° horizontal blades.
Features:
- Fixed 30° horizontal blades on 3/4" spacing
- Fully extruded aluminum blades and frame
- Supports are hidden behind blades for a clean appearance
- Bird screen is standard or select insect screen
- Available on 1" standard dimensions
- Custom sizes manufactured up to 1/16" increments
- Available in durable powder coat finish standard
Any available size in 3 days! Call us at 877-711-4822 if you do not see the size you need listed.
Finish Colors:
![]() |
![]() |
![]() |
![]() |
![]() |
White | Silver | Mill | Brown | Black (Flat Black) |
![]() |
Do you have questions about the products on this page? Click on the ? image on the left or this link to ask us your questions! |
#1 | Q: Is the dayus exterior Louvers for an HRV or is it used to let fresh air in the home without having to open your windows A: These are general purpose louvers. They can be used for exhaust or intake air applications. Asked on 2019-08-11 by tt |
---|---|
#2 | Q: To install between 16OC studs, do I order 14 width? Is it somehow possible to install these in a larger size that would span two studs? A: You would indeed order 14 inch list size louvers. Most 16 inch OC bays are 14.5 inches. Due to depth of over 1 inch, it would difficult to span a stud. Asked on 2017-07-06 by Brian |
#3 | Q: Which style has minimal obstruction against airflow (greatest open area %) for facilitating high CFM intake ? A: The 1 inch DALTL will have a higher % free area than the 2 inch but it will not be as effective at preventing rain from getting in. Here is the Dayus free area calculator if you want to check your size: http://dayus.com/Free-Area-Calculator.html Asked on 2017-04-17 by Andrew |
#4 | Q: CAN I GET THIS IN 2 AND 1/2 INCHES HIGH BY ATLEAST 10 INCHES WIDE A: The 1 inch louver could be done this way, but there may be an uneven gap if it is not done on whole inch increments. Asked on 2013-10-22 by KELLYJO |
-
residential
- AirFlow Boosting
-
Grilles, Registers & Louvers
- Learn about solutions
- Bar Linear Grilles
- Grilles - Rectangular
- Grilles - Round
- Baseboard Registers
- Curved Blade Grilles
- Decorative Grilles
- Filter Grilles
- Perforated Flat Custom Grilles
- Perforated Flanged Custom Grilles
- Plastic Grilles & Registers
- Round Perforated Flat Grilles
- Slot Diffusers & Returns
- Spiral Duct Diffusers
- Spot Diffuser Nozzles
- T-Bar Plastic Supply Diffusers
- T-Bar Metal Supply Diffusers
- T-Bar Return Grilles
- Wood Grilles
- Louvers
- Dampers
- Access Doors
- Air Handlers
- Attic Fans & Vents
- Bathroom Ventilation
- Booster Pumps
- Crawlspace-Radon Ventilation
- COVID-19 Mitigation
- Condensate Pumps
- Dryer Boosting
-
Fans
- Learn about solutions
- Inline Fans
- Inline EC Fans
- AV Closet Cooling
- Basement Ventilation
- Ceiling Mounted Bath Fans
- Crawlspace Ventilation
- Destratification Fans
- Draft Inducers and Chimney Fans
- Dryer Booster Fans
- Explosion Proof Fans
- Exterior Exhaust Fans
- Garage Ventilation
- Hydroponics Fans
- Propeller Fans Direct Drive
- Radon Fans
- Room-to-Room and Register Boosters
- Rotary General Purpose Fans
- Timers
- Exhaust Fan Controls
- Filter Boxes
- Filters & HEPA
- HRVs and ERVs
- Floor Heating
-
Indoor Air Quality - IAQ
- Learn about solutions
- HEPA Filtration
- Inline Filter Boxes
- Air Exchange Ventilators
- Air Inlets & Fresh Air Kits
- Air Purifiers
- Airflow Regulators
- Active Dampness Control
- Dehumidifiers
- Duct Heaters - Electric
- Energy Recovery ERVs
- Garage Ventilation
- Humidifiers
- Heat Recovery HRVs
- Pressure (Air) Balancing
- Radon Fans
- Supply Air Ventilators
- Thermostats
- UVC Lights and Systems
- Zoned Exhaust Systems
- Kitchen Exhaust
- Makeup Air
- Mini-Splits & Heat Pumps
- Pumps & Instant Hot Water
- Solar Air Heating
- Tankless & Flue Venting
- Thermostats and Fan Controls
- Title 24 Products
- Whole House Fans
- Wildfire Smoke Control
-
Ventilation Accessories
- Learn about solutions
- Access Doors
- Air Dampers
- Air Inlets & Fresh Air Kits
- ASHRAE 62.2 Controls
- Attic Vents
- Current Switches
- Discharge Caps - Wall
- Discharge Caps - Roof
- Dryer Exhaust Caps
- Dryer Vent Boxes & Couplings
- Duct and Duct Accessories
- Exhaust Fan Controls
- Grilles - Rectangular
- Grilles - Round
- Louvers
- Occupancy Switches
- Pressure Switches
- Relays & Misc Controls
- Silencers and Backdraft Dampers
- Soffit Vents
- Spare Parts
- Timers
- Tools For Sheet Metal
- Y Fittings and Transitions
- Zoning and Zone Dampers
why buy from us?
We're engineers passionate about home ventilation and serious about customer service – so you can count on us for carefully-selected equipment and expert advice to ensure your project is a success from specification to installation.
Your call is answered by qualified people who will gladly discuss your project in detail, advise you professionally and never sell you inappropriate products.