Bring fresh air into your greenhouse without electricity
Made from rugged, outdoor-grade PVC, the 24"W x 12"L Easy Flow Louver vent keeps the rain out and still lets in plenty of fresh air to keep plants healthy. Easy to add to your custom-designed greenhouse. Four louvers. Manual operation or add the Easy Flow Louver Opener
for solar powered operation. Rough in opening is 24 3/8" x 12 3/8".