about us

Zoro has a simple mission—
We help small business stay competitive!

We do this by offering more than 750,000 great products at super low prices. Small businesses have historically been at a disadvantage to larger companies who can buy stuff at lower prices because of their size. We want to change that!

Zoro has most of the products that the “big guys” have and we offer every single one of them at an everyday low price. There are no complex discount structures to understand. Every customer pays the same low price for an item—whether you want to buy one or one thousand!

We have our headquarters in Buffalo Grove, IL—though we are petitioning the town to rename itself Fox Grove. (We’re coming for you, Buffaloes.) And we ship orders out of six warehouses strategically located across the country. More specifically, they are in California (one in sunny SoCal and one in breezy NorCal), Illinois (the Land of Lincoln), South Carolina (the Land of Mustard BBQ sauce), Texas (the warehouse there is bigger), and Wisconsin (the Land of the Fonzie Statue).

Like you, we believe that the key to success is to always put our customers first.

contact us

We live for the moments that we can make you happy—that’s the truth!

Most of our business occurs through the internet. However, we know that there are times when you need to communicate with a person. Our customer service staff is here to help you. You can contact us in the way that works best for you.

Our customer service hours are Monday thru Friday from 7am to 7pm (CT) and Saturdays from 9am to 2pm (CT).

Si necesita ayuda en español, por favor, comuníquese con nosotros por teléfono. Gracias.

855.BUY.ZORO (855.289.9676)

855.FAX.ZORO (855.329.9676)

Contact Customer Service

using our site

Zoro has designed a unique and intuitive product search feature.

All you need to do is select the product attribute values you are looking for within your search results (size, color, material, etc.) by clicking on the value you want, and the products that meet the criteria you have chosen are immediately shown in a table right below where you made your selections.

The more specific you are in your attribute selections—the narrower the search results will become in your very own “custom made” product table!

If you prefer to search using manufacturer model #, a competitor's part number or a Zoro part number, just enter that number into the “search bar” at the top of the page, you will immediately be taken to a page that contains the item.

catalog request

Top Products Guide

Right now, Zoro’s FULL CATALOG is our website. So, you have full access to it all the time.

To request our Top Products Guide, please click below and fill out the form. Catalog requests may take up to 3 weeks to fulfill so we have also included a pdf version of the catalog to download.

In addition, you will automatically be placed on the mailing list once you buy from Zoro.

resource den

Resource Den

Need some help? We are here for you! We have awesome supplemental resources to help you be prepared, find the right items, and get the job done.

Combination Louver Dampers

Intake Louvers
Product Options
ImageItemMax. Exhaust (CFM)Max. Intake (CFM)Inside Height (In.)Inside Width (In.)Outside Width (In.)Min. Wall Opening (In.)Number of BladesFree Area (Square-Ft.)Outside Height (In.)Mfr.#ZoroItem#Ships fromPriceQty.
Combination Louver Damper51563281304547-1/236H x 48W7535-1/245C682G6650585
Combination Louver Damper24061531302123-1/236H x 24W72.3335-1/245C679G6937962
Combination Louver Damper625438121517-1/218H X 18W30.52117-1/25NKH6G0337906
Combination Louver Damper72195027424547-1/248H X 48W107.10947-1/25NKJ1G2141982
Combination Louver Damper14441005182123-1/224H X 24W41.34923-1/25NKH7G3328613
Combination Louver Damper52943369423335-1/248H x 36W105.21447-1/245C681G6614002
Combination Louver Damper24751724242729-1/230H X 30W62.20329-1/25NKH8G1471145
Combination Louver Damper22691444183335-1/224H x 36W42.1223-1/245C680G6585433
Combination Louver Damper37812406303335-1/236H X 36W73.66735-1/25NKH9G3190686
Combination Louver Damper48753413363941-1/242H X 42W95.01041-1/25NKJ0G1652007
Actuator Motor---------5NKP0G1720643

: Ships from Zoro.

: Ships from manufacturer.