annual maintenance of water coolaers , water purifier system at various places in mbmc area . , description , annexure - a , monthly servicing and compulsory visit per month for water cooler , monthly servicing and compulsory visit per month for water purifier , annexure - b , supplying , erecting , testing and commissioning self contained , stailess steel body water cooler 230/250 volts 50 cycles storage capacity 80 liters as per site requirement , supplying , erecting , self contained , stailess steel body water cooler 230/250 volts 50 cycles storage capacity 150 liters as per site requirement , supplying , erecting , self contained , stailess steel body water cooler 230/250 volts 50 cycles , and storage capacity 300 liters as per site requirement , water tank 500 ltr . , water tank cleaning , grill cabin height 6 ft . , length 3 . 5 ft . and width 3 . 5 ft . , supplying and erecting online u v filter with storage cabinet , terrace water tank purifier system sand and carbon vessel multi pot valve , terrace water tank purifier system big housing bag filter , online water filter ( cabinet ) , online water filter ( open ) , r o system 12 lph open , r o system 12 lph store cabinet , online water filter ( 20 inch ) , automatic touch free hand sanitizer dispenser , supplying and fixing high density pvc pipe 20 mm dia with all necessary materials on wall / ceiling , supplying and erecting 20 mm tee , bend , union & elbow etc . for supporting of plumbing work , supplying and erecting rigid pvc pipe 35 mm dia for drain water with pvc accessories on wall ceiling , supply and erecting grill type stand with platform size 900 x 400 mm as per site requirement , skupply & erecting compressor kce 444 , skupply and erecting compressor 1/4 hp , supply of gas charging , rewinding of fan motor , suplly of running capacitor , supply of starting capacitor , suppy of relay , supply of termostat , supply of water ball , suppy of steel press water tape , supply & erecting isi mark flush shockproof plug socket 6a & 16 a , supply & erecting pvc armourd cable 2 core 2 . 5 sq . mm copper conductor continue 5 . 48 sq . mm g . i . earth wire , parts :- sedinent , carbon , minrals , post carbon , membrain , membrain housing , smps , s . v , foot valve , carbon block ( gac ) , carbon block ( cto ) , pre filter housing , u v set , pipe 1/4 , qc fitting 1/4 , booster pump , 20 inch housing , 20 inch pre filter , 20 inch carbon block ( cto ) , 20 inch carbon block ( gac ) , 3/8 pipe , 3/8 q c fitting , installation testing & commissioning of water purifer in instruction of site incharge as per site requirement , plumbing charges of all site with chipping , making the hole with proper cementing work and connect the pipe line with purifier