supply of (1) supply of water pressurizer unit (with input/output assy, connectors, leg brackets) for left side lavatory designed for pressurised flushing system fitted in lhb coaches, similar to item code spac0018975 of spac make or similar to norgren/air flow-genetic/shree prayag make.(2) supply of water pressurizer unit (with input/output assy, connectors, leg brackets) for right side lavatory designed for pressurised flushing system fitted inlhb coaches, similar to item code spac0018974 of spac make or similar to norgren/air flow-genetic/shree prayag make , supply of water pressurizer unit (with input/output assy, connectors, leg brackets) for left sid e lavatory designed for pressurised flushing system fitted in lhb coaches, similar to item code spac00189 75 of spac make or similar to norgren/air flow-genetic/shree prayag make. [ warranty period: 30 mo nths after the date of delivery ] ] , supply of water pressurizer unit (with input/output assy, connectors, leg brackets) for right si de lavatory designed for pressurised flushing system fitted in lhb coaches, similar to item code spac0018 974 of spac make or similar to norgren/air flow-genetic/shree prayag make [ warranty period: 30 mo nths after the date of delivery ] ]