Janssens | Roof Window Fly Screen for Greenhouses round Galvanized steel surface makes clean-up

Galvanized steel surface makes clean-up a breeze

If your greenhouse has already shipped or you are ordering this for an existing greenhouse

this comprehensive kit includes everything you need to optimize your greenhouse's efficiency

fits both classic and pro small Harvest Right freeze dryers

Janssens | Roof Window Fly Screen for Greenhouses round Galvanized steel surface makes clean-upKeep fresh air flowing while helping keep insects out. The Janssens Roof Window Fly Screen is a practical upgrade designed for Janssens greenhouse roof vents, giving you better ventilation comfort without inviting unwanted bugs into your growing space. This factory assembled screen mounts underneath the roof window and includes a built in slot with a brush seal opening for the window operating device, so your vent can continue to function smoothly.