Dimensions: Hole Diameter to be punched for setting is1/2-9/16". Part number 5037 grommet hole punch is 1/2" and works well with this ventilator grommet.
Features: Brass 3/4" vents and washers. When set they will allow air to escape from cushions and pillows. Use anywhere that small amounts of airflow are required in textiles.
Instructions: Requires the Hand Setting Die for Ventilators to set (Part # 9022)
Product Contains: Brass
Uses: Mattress, upholstery and any other application where airflow is a concern
