Linear, Slot & Spiral Duct

Architectural-grade linear slot diffusers, bar grilles, and spiral duct components for clean-line commercial and modern residential installations.

2-slot & 3-slot optionsBar grille designsArchitectural finishCommercial grade
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Wholesale sourcing

Source Linear, Slot & Spiral Duct 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

Certifications

UL · CE · M1

1 of 3 UL-listed in China

Export markets

60+

Countries served

Distributors & wholesalers

Source linear, slot & spiral duct by the container. Standard stocking assortments or a custom size and finish mix. Monthly recurring orders with priority production queue.

Mechanical contractors

Project-based linear, slot & spiral duct orders. We review your mechanical drawings and recommend the right models — free on orders over 100 pcs. Custom sizes available.

OEM & private label

Manufacture linear, slot & spiral duct under your brand. Custom dimensions, finishes, packaging, and documentation. Dedicated production runs from 500 pcs.

Request Linear & Slot pricingWholesale Linear & Slot info →
Technical guides

Learn more about linear & slot

Linear Slot Diffuser Design

Slot configurations, Coanda effect, and sizing

Spiral vs Rectangular Duct

Cost, performance, and installation comparison

HVAC Duct Fittings Guide

Fitting types for spiral and rectangular duct systems

FAQ · Linear & Slot

Linear, Slot & Spiral Duct — FAQ

What is the MOQ for linear, slot & spiral duct?▾

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 linear, slot & spiral duct?▾

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 linear, slot & spiral duct?▾

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 linear, slot & spiral duct have?▾

UL, CE, M1, ROSH, and AWTA depending on the product line. View certifications.

Custom manufacturing

Need custom linear & slot?

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

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