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
5 PRODUCTSAsk on WhatsApp →
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.

Request a Quote — Free & FastChat on WhatsApp — Reply in 2 Hours
WhatsAppGet a Quote