Universal Cooker Hood Duct Valve & Non‑Return Flap Connector 5‑125 mm

The Universal Cooker Hood Duct Valve & Non‑Return Flap Connector (5 in / 125 mm) is the go‑to solution for anyone looking to keep unwanted odors and cold drafts out of their kitchen or HVAC system. Made from high‑impact plastic in a clean white finish, this connector fits snugly inside any 5 in (125 mm) round duct or a 127 mm flexible vent hose, letting you extend or join sections of ductwork with confidence.

Key benefits
– Back‑draft protection – an off‑centre hinge blocks external air when the fan is off, sealing the system against smells and drafts.
– Automatic airflow control – the gravity‑damper flap opens only when air is moving and snaps shut the moment flow stops.
– Wide compatibility – works with cooker hoods, air‑conditioner vents, bathroom and kitchen extractor fans, hydroponic fans and inline extract fans from all major brands.
– Robust performance – operates safely from –15 °C up to 60 °C and offers a free flow area of 11 500 mm² for efficient ventilation.

Specifications
– Diameter: 5 in / 125 mm
– Width: 62 mm
– Material: High‑impact plastic (white)

Whether you’re upgrading a home kitchen vent or installing a new air‑conditioning line, this universal duct valve delivers reliable, hassle‑free protection against back‑drafts while maintaining optimal airflow. Easy to install and built to last—perfect for DIY projects or professional installations alike.