Ruck 18'' Flat Protection Grille – Ventilation Guard Heliospectra Twin 0-10V Channels: Independent analog

Twin 0-10V Channels: Independent analog control of two zones

18% calcium content supports strong cell walls

add 1–2 tbsp per hole

providing an added layer of protection for your crops

Ruck 18'' Flat Protection Grille – Ventilation Guard Heliospectra Twin 0-10V Channels: Independent analogStreamlined Protection for Ventilation Systems The Ruck 18'' Protection Grille Flat is engineered to shield duct openings from contaminants, insects, and debris without compromising airflow. Its low profile, flat design provides a clean, unobtrusive finish that blends seamlessly into any ventilation setup. Built to Last with Galvanized Steel Constructed from galvanized steel, this grille resists corrosion and is ideal for long term use in demanding