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Shipping Estimate
USA
- USA
- CAN
- USA
- CAN
Ships within 48 hours · Estimated delivery Aug 17 - Aug 22
Promo Codes Available:
For Your Every Summer RSVP, with Code: SUMMER15
Description
Builder's Best WMF621 Foil DuctWire helix multi ply foil duct designed for low to medium operating pressures in HVAC systems Class 1 Air Connector label meeting NFPA (90A and 90B). Tear and Puncture Resistant Encapsulated wire helix does not unravel when cut to length Air tight construction and smooth inner core Steel Wire Support Note: Not for use to vent appliances for cooking, heating, and clothes drying unless approved and recommended by the appliance manufacturer PRODUCT
- Wire helix multi ply foil duct designed for low to medium operating pressures in HVAC systems
- Class 1 Air Connector label meeting NFPA (90A and 90B).
- Tear and Puncture Resistant
- Encapsulated wire helix does not unravel when cut to length
- Air tight construction and smooth inner core
- Steel Wire Support Note: Not for use to vent appliances for cooking, heating, and clothes drying unless approved and recommended by the appliance manufacturer
PRODUCT SPECIFICATIONS
- Wire helix duct with steel wire support
- Multi-ply design of aluminum/polyester laminate and metalized polyester
- PRO Performance LevelUL® 181, Class 1 air connector label;
- UL® sticker every 10 feet
- 3" dia. has ¾" pitch; 4–12" dia. has 1" pitch
- Maximum velocity rating 5000 fpm
Shipping Notes
- Free Standard Shipping on $100+ Orders to the USA.
- Except Preorder products are shipped in 48 hours.
- Delivery to the USA:
- Standard Shipping : 3-10 business days
- If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
- We offer a 30-day return/exchange service after receiving.
- Final sale items are not eligible for returns or exchanges.
- To process your return/exchange, please contact us at [email protected]
- Please click here for more details>>> Return & Exchange Policy
4.5 ★★★★★
Based on 15 reviews
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Product Reviews
★★★★★ 5
Well made
I like that it’s lightweight very vintage looking
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 17, 2026
★★★★★ 5
Well made
I like that it’s lightweight very vintage looking
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 17, 2026
★★★★★ 5
Well made & sturdy
Size: 6.5x10ft, Color: Red
I have it in the umbrella stand however I haven’t used it yet as it hasn’t been sunny where I live.
Once I begin to use it, I’ll update this review.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 15, 2026
★★★★★ 5
Great value
Size: 6.5x10ft, Color: Black-White Stripe, Size: 6.5x10ft, Color: Black-White Stripe
Beautiful and huge!!!
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 10, 2026
★★★★★ 1
Horrible quality
Size: 6.5x10ft, Color: Red
Horrible quality. The crank didn't work. The umbrella just flopped open. Once it did I cranked it, but it was cranking in wrong direction. Umbrella sat totally lopsided. The overall quality of this umbrella including the canopy is junk. Looks cheap. Returning!!
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 27, 2026
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