BEST CHOICE BFB — TECHNICAL SPECIFICATIONS
Insulated Backflow-Valve Freeze Blankets
Manufactured in Vallejo, CA, USA · Since 1986
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PRODUCT
  Insulated freeze protection covers for backflow prevention assemblies.

MATERIALS
  Exterior shell: 22oz UV- and fire-retardant polyvinyl
  Insulation: Continuous polyfill core (whole-piece cut, not scrap-filled)
  Thread: Double-stitched UV-resistant nylon
  Hardware: Industrial metal grommets (padlock/cable capable)
  Options: Custom Velcro access seams for test ports; side rivets on heavy-duty models

PERFORMANCE
  Thermal rating: Maintains water flow in static lines up to 10 continuous hours at 0°F (tested)
  Intended use: Outdoor municipal, commercial, irrigation, and institutional backflow assemblies

STANDARD MODELS (guide)
  WG1  — 3/4" pipe     — approx. 20"L x 15"H
  WG2  — 1"–1.5" pipe  — approx. 34"L x 19"H
  WG3  — 2"–2.5" pipe  — approx. 45"L x 22"H
  WG4  — 3"–4" pipe    — approx. 4'–6'L x 4'H
  WG5–WG7 — 4"+ / large industrial — up to approx. 9'L x 5'H
  Always confirm with field measurements. Size up when between sizes.

COMPATIBLE ASSEMBLY FAMILIES (typical)
  Watts, Wilkins, Febco, Apollo, Zurn, Conbraco

LEAD TIME
  In-stock standard sizes: 24–48 hours
  Custom cuts: typically 5–7 business days

WARRANTY
  5-year structural warranty on standard WG-series (see website Warranty page)

CONTACT
  Toll-free: 1-800-333-6721
  Vallejo:   707-644-6721
  Fax:       707-644-0239
  Email:     sales@backflowblanket.com

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