Duraflo 60PRO117BL WeatherPro Turbo Roof Ventilator, Polypropylene Rainy_Weather The variable speed dial allows

The variable speed dial allows for optimal precision control

Lead free compliant product which meets public law 111-380

These Double Hot Dipped Spiral Shank Pressure Treated Lumber Nails are made from stiffer stock steel so the shanks can be smaller in diameter to help reduce wood splitting without bending

and manual flow control which allows for fine tuning of the amount of water pressure going to each individual zone reducing misting and fogging at the sprinkler and therefore saving water

Check valve

Duraflo 60PRO117BL WeatherPro Turbo Roof Ventilator, Polypropylene Rainy_Weather The variable speed dial allowsHighlights: Material: Polypropylene Adjustable base Turbo Pivoting top with locking pitch tabs accommodate 3 12 to 12 12 roof pitches 117 Sq. In. Net free venting area Crush, dent & corrosion resistant UV & Cold impact resistant to 40