Backflow prevention valve for drainage in handholes, etc.

Backflow prevention valve for drainage in handholes, etc.

Backflow prevention valve for drainage in handholes, etc.

Backflow prevention valve for drainage in handholes, etc.

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Drainage Backflow Prevention Valve 'DV-50N/DV-75'

Discharge water from hand holes, cable ducts, and information boxes! Prevents the intrusion of groundwater.

last updated Nov 25, 2024