DuraVent DuraTech LDC 12" Square Trim Collar for Round Support Box
The DuraVent DuraTech LDC 12" Square Trim Collar for Round Support Box is a premium chimney finishing accessory designed for use with the DuraTech LDC all-fuel double-wall chimney system. Ideal for factory-built fireplaces, large masonry fireplaces, and vented non-condensing appliances, this trim collar provides a clean, professional finish around ceiling support box openings. It enhances chimney system aesthetics, installation accuracy, and code-compliant venting performance in residential and light commercial applications.
Engineered as part of a UL 103 Type HT listed chimney system, it supports diameters from 10" to 16" and features a solid-pack design with 1" ceramic insulation between a stainless steel inner wall and stainless or Galvalume outer jacket. It maintains a 2-inch clearance to combustibles and is tested to US and Canadian standards, ensuring long-term chimney safety, thermal efficiency, and reliable high-temperature performance in demanding installations.
Features
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Essential Chimney Finish Accessory: The DuraVent DuraTech LDC 12" Square Trim Collar is designed for use with the DuraTech LDC double-wall chimney system to provide a clean, professional ceiling finish.
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Conceals Ceiling Installation Gaps: Effectively hides the gap between the round ceiling support box and ceiling cut-out, delivering a seamless chimney installation appearance.
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Improves Chimney Aesthetics: Enhances overall fireplace and chimney system finishing, ensuring a polished look for residential and light commercial installations.
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Durable Galvalume Construction: Manufactured from high-quality galvalume material for long-lasting strength and resistance in chimney venting applications.
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Factory Painted Black Finish: Features a black-painted surface for a modern, clean appearance that blends with interior ceiling décor and chimney components.
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Compatible with DuraTech LDC Systems: Specifically d
Specifications
| Specification |
Details |
| Model |
12DT-TCR |
| Series |
DuraTech LDC (10"-24") |
| Product Type |
Trim Collar |
| (Size) Inside Diameter |
12” |
| A |
16 1⁄4” |
| B |
22” |
Downloads
California PROP 65: This product can expose you to Lead & Chromium, which is known to the State of California to cause cancer and birth defects, or other reproductive harm. See WARNING
