Item No.1 :- Differential Pressure Switches (Dps) Of Pressure Range From 0.08 - 1.20 (Inches Wc) Shall Be Provided With More Than 10,00,000 Operations With Automatic Reset With Ip-54 Protection As P Er Iec-60529 With Ul-94 V0 -Qty 01 No. Per Set. Item No.2:- Ss304 Tube With Id 4.0Mm And 6.6 Of Od And L Ength : 1.173 Mtrs To Connect The Differential Pressure Switch To Heating Element -Qty 01 No. Per Set. Set Of Item No. 1&2 Is Required For Modification Works As Per Rdso Ms No.- Rdso/Pe/Ms/Ac/0089-2022 Rev.0 A Nd Hq/Jp L. No. El/245/2(Mod.) Dt.09-02-23. Make :- Ssk,Sidwal,Daulatram,Prag,Beck Or Substantially E Quivalent [ Warranty Period: 30 Months After The Date Of Delivery ] ]