online rco for supply of isi marked or tested plant protection equipments for the year 2020-21 and 2021-22 , isi marked or tested plant protection equipments , knapsack sprayer 16 ltr . plastic pressure chamber ( inside tank ) is : 3906 : 1995 , knapsack sprayer 16 ltr . plastic pressure chamber ( outside tank ) is : 3906 : 1995 , knapsack sprayer 16 ltr . brass pressure chamber ( inside tank ) is : 3906 : 1995 , knapsack sprayer 16 ltr . brass pressure chamber ( outside tank ) is : 3906 : 1995 , power sprayer cum duster 16 ltr . is : 7593 : 1986 with isi marked engine , power sprayer cum duster 11 . 5 ltr . is : 7593 : 1986 with isi marked engine , battery operated knapsack sprayer ( non isi ) ( battery power 12v - 8ah ) tank cap . 16 to 20 ltr . , battery operated knapsack sprayer ( non isi ) ( battery power 12v - 12ah ) tank cap . 16 to 20 ltr . , battery cum hand operated knapsack sprayer ( non isi ) ( battery power 12v - 8ah ) tank cap . 16 to 20 ltr . , battery cum hand operated knapsack sprayer ( non isi ) ( battery power 12v - 12ah ) tank cap . 16 to 20 ltr . , double motor battery operated knapsack sprayer ( non isi ) ( battery power 12v - 14ah ) tank cap . 16 to 20 ltr . , double motor battery cum hand operated knapsack sprayer ( non isi ) ( battery power 12v - 14ah ) tank cap . 16 to 20 ltr . , 2 stock power operated knapsack sprayer ( non isi ) tank cap . 18 to 23 ltr . , 4 stock power operated knapsack sprayer ( non isi ) tank cap . 18 to 23 ltr .