supply and installation work supply and installation of two r o filter with uv purification plant of discharge capacity 500 lph withteen shade , r . o . filter with uv purification with all accessories & mounting with fitting at site & successful trial ( 500lph pure water discharge ) as per technical specification of annexure attached the r . o . filter unit should consist following major items a ) water jar ( 18ltr capacity cool plastic jar for pure water ) 50-nos b ) lldpe rotational modulded polythene cylindrical vertical water storage tank ( double layer ) with isi marked of is:12701:1996 latest revision ( 2000 ltr for raw water - 1 nos & 1000 lit for pure water 1 no ) total 2 nos . c ) card system ( swap card system with 300 card ) - 1unit d ) water chiller of capacity 2 tone emrison compreser e ) gps/gprs monitoring system , gst 18% , construction of teen shade