All Ceiling Air Diffusers | 1800ceiling

Fast & professional shipping/packaging to prevent damage. Free replacement if your item is damaged.

We are a leading supplier, to the USA, of ceiling air diffusers and vents for HVAC systems. Our high quality diffusers and vents are made with premium ABS plastic and won't rust, are easy to maintain and provide a professional look in commercial and office spaces. They are available in 2x2 standard commercial and office HVAC sizes and in addition to diffusers we have vents, plaques and more. They are manufactured right here in the USA and in stock.

Please browse all our HVAC vents and diffusers by category below. If you have any questions about our products please feel free to call us at 516-221-1484 or email us at sales@1800ceiling.com. We are experts with our products and are happy to help answer any questions or find the right product for your needs.

2'x2' Ceiling Air Diffusers

Plaque Style Diffusers

Insulated Air Diffusers

Ceiling Air Returns

Return Air Grilles

Residential Small Air Vents & Returns

Floor Vent Covers

Flat Air Grilles & Returns

HVAC Supplies

Why Shop Ceiling Air Diffusers With 1-800Ceiling.com

We specialize in ceiling products to work with commercial and office HVAC systems and sizes. Our products:

Are made from only quality materials including high-quality PVC or aluminum
Durabile and won't rust
Meet fire ratings
Resist sweating and dust build up
30 years of industry experience

Most are available in the standard 2' by 2' square size, optimal for commercial or office HVAC and ceilings.

Product Reviews

Tax Exempt? Click here before ordering

Tax Exempt Organizations, BEFORE PLACING AN ORDER.

If you are a tax exempt organization, please do the following to create a seamless order.

Set up an online account with our web store.
Email your properly completed and signed tax exempt certificate to: sales@1800ceiling.com
In the subject line write: Tax Exempt Certificate
In the body of the email please state the email address that was used to create your account.
We will change your status to tax exempt and notify you via email when the status has been updated.
Please wait for the confirmation email before placing your order.
Click this link for our 2025 W9 certificate, 1800ceiling, Inc, dba: ReCeil It -Government Purchasing info below:
Click this link for our GSA Capability Statement
Click this link for our SAM.gov & Cage Code info.
Click this link for our government 889 Form.

Attention CA Residents: Prop 65 Warning

Some of the products sold by 1800ceiling.com are included in the California Proposition 65 warning. What is Proposition 65?

Proposition 65 requires businesses to provide warnings to Californians about significant exposures to chemicals that cause cancer, birth defects or other reproductive harm. These chemicals can be in the products that Californians purchase, in their homes or workplaces, or that are released into the environment. By requiring that this information be provided, Proposition 65 enables Californians to make informed decisions about their exposures to these chemicals.

Proposition 65 also prohibits California businesses from knowingly discharging significant amounts of listed chemicals into sources of drinking water.

Proposition 65 requires California to publish a list of chemicals known to cause cancer, birth defects or other reproductive harm. This list, which must be updated at least once a year, has grown to include approximately 900 chemicals since it was first published in 1987.

Proposition 65 became law in November 1986, when California voters approved it by a 63-37 percent margin. The official name of Proposition 65 is the Safe Drinking Water and Toxic Enforcement Act of 1986.

Visit the Proposition 65 Warnings Website

The California Office of Environmental Health Hazard Assessment is establishing this website to provide the public with information on chemicals, products and locations often associated with Proposition 65 warnings. These warnings inform Californians about their exposures to chemicals that cause cancer, birth defects or other reproductive harm. Visiting this website regularly will help you learn about these chemicals and how you can reduce your exposure to them. We will be adding new information frequently.