TOHONFOO Backflow Preventer Insulation Cover (5°F) – 16x20in, 5-Layer Winter Protection

Overview

Meet the TOHONFOO Backflow Preventer Insulation Cover, engineered to guard essential irrigation hardware through cold snaps and sun-scorched days. With a robust 5-layer design and a waterproof outer shell, it helps minimize exposure to harsh weather while you winterize your system.

5-layer protection that lasts

• One rugged 600D Oxford outer layer keeps rain and melting snow from soaking through.
• Two cotton insulation layers provide warmth without bulk.
• Two PE silver-coated layers reflect heat and help maintain internal warmth inside the pouch.

Size and fit you can trust

Outside dimensions are 16 inches wide by 20 inches tall. Since equipment adds depth, we recommend adding at least 3 inches of clearance when choosing a size, so the cover fits comfortably around your device.

Easy installation and added security

• Slip the cover over the backflow unit, then fasten the Velcro strips for a snug seal.
• Extra nylon ties help fix the pouch in place, and grommets can be chained to deter theft.

Multipurpose protection

Use this insulated pouch beyond backflow covers—it's suitable for sprinkler system covers, well heads, hose bibs, and other irrigation components, guarding against snow, wind, and enduring sun exposure.

Practical care and winter tips

For winterization, drain the system as recommended to minimize pressure surges. The cover remains a protective layer between cold air and your equipment, reducing weather-related wear over the season.