Round Metal Vents & Diffusers

Round stainless steel and galvanized metal vents — bull-nose exhaust hoods, flat wall caps, louvered vents, and adjustable disc valve diffusers.

Stainless steel / galvanizedRound profileWeather-resistantCommercial grade
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Wholesale sourcing

Source Round Metal Vents & Diffusers wholesale — factory direct

Manufactured in Dongyang, China. No trading companies, no middlemen. Airwise has supplied HVAC distributors and contractors across 60+ countries for 25+ years.

MOQ

100 pcs

Standard catalog items

Lead time

25–35 days

Sea freight ex-China

Documents

By product

UL certification not yet obtained

Export markets

60+

Countries served

Distributors & wholesalers

Source round metal vents & diffusers by the container. Standard stocking assortments or a custom size and finish mix. Monthly recurring orders with priority production queue.

Mechanical contractors

Project-based round metal vents & diffusers orders. We review your mechanical drawings and recommend the right models — free on orders over 100 pcs. Custom sizes available.

OEM & private label

Manufacture round metal vents & diffusers under your brand. Custom dimensions, finishes, packaging, and documentation. Dedicated production runs from 500 pcs.

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Technical guides

Learn more about round metal

Weather-Proof Louver Guide

Round and rectangular exterior vents

Fresh Air Intake Louver

Intake sizing and weather protection

FAQ · Round Metal

Round Metal Vents & Diffusers — FAQ

What is the MOQ for round metal vents & diffusers?▾

Standard items start at 100–500 pieces. Custom or OEM orders usually require 500–2,000 pieces. Contact us for exact pricing.

Do you offer OEM/ODM for round metal vents & diffusers?▾

Yes. Custom dimensions, materials, finishes, and packaging. We have been an OEM partner for global HVAC brands for 20+ years.

What is the lead time for round metal vents & diffusers?▾

Standard items: 15–25 business days from China. Custom/OEM: 30–45 days. US spiral ducts: 5–10 days from Houston, TX.

What certifications do your round metal vents & diffusers have?▾

UL certification has not been obtained; a new application is planned for November 2026. CE, M1, RoHS and AWTA documentation varies by product. Ask for documents for your item.

Custom manufacturing

Need custom round metal?

OEM manufacturing, custom dimensions, private labeling. Quote within 12 hours.

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