Duct Work Clamp
4″ metal screw type clamp joins vinyl hose to pipe, vent hoods, etc. Use with 4″ vinyl hose only.
J&R Products offers FREE SHIPPING for all domestic orders that total over $50 and are shipping to the lower 48 states. If you are needing items shipped outside of this area, please give us a call at 1-800-343-4446 to complete your order.
FIRE-RESISTANT THERMOPAN® - CLASS 1 FIRE RATING Performance Tested UL723 Test Standard. Look for these ETL® Test Values on every piece of Fire-Resistant ThermoPan®. A high-quality, sheet metal alternative for constructing return air ducts between joists and stud cavities. Consists of corrugated insulation faced with aluminum. Available in various widths, packed 25 to the box. Significantly reduces duct noises and labor. Requires no shop fabrication. Lightweight pre-cut THERMOPAN® comes in many sizes. Staples easily and quickly to floor joists and stud cavities, saving on labor costs and adding higher quality to the job. Made From Recycled Products in USA and Canada.
- FLAME SPREAD INDEX 5
- SMOKE INDEX 15
- CLASS 1 FIRE RATING
All aluminum wide mouth hood includes standard tail piece. Vent is 4" in diameter and it allows a full 4" opening, and is dampered. 10 per case.
$2.95 – $4.47