So it lasts longer

The Extra Large size is only needed for the Harvest Right Extra Large 7-Tray Home Freeze Dryer (the Extra Large pump can also be used with Large size freeze dryers)

Front aluminum trim and back hidden rubber gasket

24"L x 127

Not only is this a practical addition to your home

Palram - Canopia | Roof Vent Kit for Sun Room Six and Sun Room Eight Harvest Right So it lasts longerIncrease the air circulation in your Palram Canopia Sun Room Six or Sun Room Eight with an additional air vent. Additional air vents will reduce humidity and improve air circulation to keep your Sun Room cooler on warm days. Provides additional air ventilation and circulation Helps regulate temperatures Manual adjustment for variable airflow Works with all Palram Canopia Sun Room Six and Sun Room Eight greenhouses Can be fitted with the Palram Canopia