Nylon screening material is an excellent choice for many aquaculture and laboratory uses, including filtration of unwanted organisms; brine shrimp culture; larval fish and clam culture; pipe screens, filter bags and nets. Nylon is resistant to bacteria, cleaners, acids and insects. This screening is 36" wide and is sold by the yard length (1 yard = 36" = 91 cm). 1 linear yard = 9 ft 2 = 1 yd 2 . Contains no UV inhibitors.