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Technical specifications
Submittal-ready overview for municipal and commercial buyers. For stamped packets or CAD details, email sales@backflowblanket.com.
Exterior shell
22oz UV- and fire-retardant polyvinyl
Insulation
Continuous polyfill core (whole-piece cut)
Thermal performance
Maintains flow up to 10 continuous hours at 0°F (tested)
Seams
Double-stitched UV-resistant nylon thread; rivets on heavy-duty models
Security
Industrial metal grommets for padlock/cable
Options
Custom Velcro access seams for test ports
Standard models
WG1–WG7 (¾" pipe through large industrial formats)
Lead time
In-stock standards: 24–48 hours; custom: typically 5–7 business days
Warranty
5-year structural warranty (see Warranty page)
Origin
Manufactured in Vallejo, CA, USA