Tildenet manufactures three grades of frost protection fleece; Thermagro, Thermagrow Ultra and Thermagro Plus.
Thermagro is the ideal, lightweight frost protection fleece to protect crops down to temperatures of -2/3ºC.
For extra strength choose Thermagro Plus which has 30gsm reinforced edges.
Thermagro Ultra is the heavier weight frost protection fleece to protect down to temperatures of -5/6ºC.
Thermagro allows more light penetration than Thermagro Ultra but provides less frost protection.