Features
- Specification: Color: Silver; Material: galvanized iron; Size: 65 x 0.6 mm/2.56 x 0.02 inches (H*W); Interface OD: 75 mm / 2.9 inches; Diameter: 88 mm / 3.5 inches; Packing list: 1 piece x Duct Collar
- Advantages: 1. made of durable galvanized iron material, sturdy, waterproof, moistureproof, wear-resistant, good toughness, strong pressure resistance, not easy to deform, can be used for a long time; 2. The design of flange connector with wrinkles makes the hose pipe have certain expansion and bending ability, ensures a tight connection, prevents air leakage, and improves the working efficiency of the system. Adapt to a variety of installation scenes.
- Instruction: Attach the duct connector to the wall, floor, ceiling opening or any other surface. Then connect the connector to the duct.
- Application: This duct collar is used for connecting air ducts, including metal spiral pipes, hoses, PVC pipes and so on. It is suitable for bathroom fans, extractor fans, tumble dryers, in-line extractor fans, HVAC systems, dust collection systems, hydroponics installations and so on. They are widely used in homes, offices, kitchens, warehouses and apartments.
- Note: Please choose the right size according to your needs. Product does not include screws
Specifications
| Size | 3 Inch |
Related Tools
This 3-inch duct collar is a galvanized-iron flange used to connect air ducts to wall, floor, or ceiling openings for HVAC, extractor fan, dryer and general ventilation systems. It has a corrugated flange to help form a tighter, flexible joint, with a 75 mm interface OD and 88 mm outer diameter (flange 65 x 0.6 mm); screws are not included.
Project Ideas
Business
Upcycled Industrial Home Decor Line
Build a small product line using duct collars as signature components: pendant lights, planters, candle holders, and hooks. Source collars in bulk, finish them (patina, powder coat, antique zinc), add simple wiring or liners, and photograph styled shots for Etsy/Shopify. Price items to cover parts, labor, and marketplace fees; target customers who like industrial/urban loft aesthetics and sell through online marketplaces, local boutiques, and craft fairs.
DIY HVAC Accessory Kits
Assemble and sell install-ready duct-collar kits for common home tasks (bathroom fan, dryer vent, small dust-collection hookups). Each kit can include the 3" collar, rubber gasket, screw set, hose clamps, and a concise instruction sheet or QR-linked video. Market to DIY homeowners, landlords, and small contractors through Amazon, home improvement stores, and local hardware suppliers.
Grow-Tent & Hydroponics Vent Kits
Package collars with short lengths of flexible duct, clamping adapters, and inline fan mounts aimed at hobby hydroponic and grow-tent markets. Emphasize the collar’s corrosion resistance and tight flange connection. Sell kits in sizes matching common fans and ducting, partner with grow-shop retailers, and provide compatibility guides and installation tutorials.
Maker Workshops & Experience Classes
Run paid workshops teaching participants to make a lamp, planter, or wind chime using duct collars and a few basic tools. Charge per-seat including a materials kit (collar, wiring, hardware). Workshops can run at makerspaces, pop-up studios, or as private team-building events. Ancillary revenue: sell finished product kits online or provide follow-up advanced classes.
Wholesale Craft Supply Packs
Buy duct collars in bulk and repackage them as curated 'industrial accent' packs for crafters, florists, event stylists, and DIY retailers. Offer packs with mixed finishes, pre-drilled mounting holes, or pre-smoothing/grounded edges as premium SKUs. Sell via B2B channels, Etsy wholesale, or subscription boxes to craft studios and wedding decorators.
Creative
Industrial Pendant Light
Use the 3" duct collar as the base/neck of a small pendant lamp. Cut a hole in a thin metal or glass shade and fit the collar as the socket flange, secure an E26/E27 lamp socket through the collar, add a steel canopy or chain to hang. The galvanized iron resists heat and moisture; the corrugated flange gives a rugged, textured look. Note: de-burr edges and ground the fixture properly for safety. Great for kitchen islands, bars, or steampunk décor.
Mini Hanging Planter
Turn the collar into a compact hanging planter for succulents or air plants. Line the interior with a cut tin or silicone cup for soil and drainage, thread macramé or thin chain through the corrugations to suspend it, and use the galvanized finish to withstand watering. The 3" size is perfect for small plants and creates a modern-industrial aesthetic for windowsills or grouped wall displays.
Desk Cable Grommet & Organizer
Mount the collar into a drilled hole in a desk or shelf to route power cords and monitor cables neatly. The flange keeps flexible conduit or braided cable sleeving centered; add a rubber or silicone liner to protect wires from sharp edges. This creates a durable, industrial-looking cable pass-through that’s more robust than plastic grommets.
Steampunk Votive / Candle Sleeve
Stack or cluster several collars and rivet or weld them into a tiered votive holder. Place a glass tealight cup inside the collar for safety (or use LED candles). The galvanized metal and corrugated flange offer a mechanical, steampunk texture. Ideal as table centerpieces or outdoor decorative lighting (LED recommended for open flames).
Weatherproof Wind Chime / Mobile
Create a durable outdoor mobile by hanging multiple collars at different lengths from a circular metal hoop. The galvanized finish resists rust, and collars produce pleasant metallic tones when they strike each other. Add beads, reclaimed chain links, or small bells for visual interest and varied sound.