Greenhouse Woven Plastic Cover SUPER STRONG SHINY 4 yr warranty - Super Heavy Duty Film - 20 Ft X 28 Ft - Palring 146 Brand Extra strength makes it hail and tear-resistant  long lasting. Shiny finish for increased direct sunlight. Contains infrared (IF) additives to help maintain a more efficient greenhouse when heating or cooling. Anti-fog will reduce fuel cost up to 40%. UV package of additives assures superior performance and long life. IR additives keep foliar temperature higher in the greenhouse during cold nights. UV package of additives assures superior performance and long life. IR additives keep foliar temperature higher in the greenhouse during cold nights. Anti-drip directs condensation to the covers edges, reducing the incidence of fungus and disease.