Louvers, Vents and Grilles for the HVAC Industry - LD Series Soffit Vents - per dozen

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LD Series Soffit Vents - per dozen

LD Series Soffit Vents - per dozen

LD Series Soffit Vents - per dozen
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LD Series Soffit Vents - per dozen


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The LD Series Louver is a screen only louver designed to ventilate and reduce moisture in both home and industrial environments. These easy to install louvers are available in seven standard sizes to meet most application requirements. The louvers are suitable for installation in wood soffits, plastic, and sheet metal and are stocked in a mill, white, brown or black finish.

Ordering Round Soffit Vents: The Bestlouvers LD Series soffit vents are easiy to install, neat in appearance and rugged in construction. The fine screen mesh in "LD" louvers is anchored in permanently and will keep insects out while allowing for maximum ventilation. The LD series has our largest net free area of all our louvers

Calculate the total vent area needed: Multiply your attics length by the width in feet to find the attic area, then divide by 300 to find the total square feet of vent space needed. Soffit vents are mostly used in conjunction with a ridge vent or gable end vents to balance airflow. Ridge vents supply approx 13 sq/in per linear foot of net free area.

For Example:
a 50′ x 30′ attic with a ridge vent would have a total area of 1,500 sq. ft., divided by 300 equals 5 sq/ft. of total ventilation needed. Now multiply 5 x 144 = 720 sq/in to get your square inch requirement. If the ridge vent is 50 ft long then subtract 50 x 13 = 650 from 720 = 70sq/in of soffit ventilation is required.

LD Series Net Free Area: (1"=0.43 sq/in) (1.5"=1.07 sq/in) (2"=1.70 sq/in) (2.5"= 2.85 sq/in) (3"= 4.10 sq/in) (4"=7.53 sq/in) (6"=16.76 sq/in)

Choosing the Proper Size for your hole: 1" louvers will fits in a 1" hole, a 4" louver fits a 4" hole and so on.

Standard Collar for installation in wood soffits. Press fit and the most common collar.
Tab collar* we stamp off the standard collar leaving four tabs standing up that once pushed through your hole fold over from the back to hold louver in place. Mainly for use in thin sheet metal applications where you have access to the back of the louver.
*Be sure in ordering tab collars, once we tab them they are not returnable.

We want you to be completely happy with your purchase from BESTLOUVER. If you are not satisfied with your product, you may return it for a refund of the purchase price or exchange for another product within 30 days of the ship date on your invoice/packing slip. All returns must be in the complete in the original packaging and show no signs of wear or use and include a Return Authorization number or be subject to a 20% restocking fee.

For More Information:
Sales/Tech: 866-257-7449 Ext 701
Email: mjhbestlouver@aol.com

Bestlouver.com LLC
Naples, Florida 34114

Click the blue product specification link above for technical info.
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