Check your eligibility criteria for tender Supply of Qvrf Relay Switzer Make Model Gm 021-00-Bd-5-Z -2.5 To 2.5M Bar Or Dwyer Model 1910-1 0.40 To 1.6 Inch Wc Or Eversure Make Diaphragm Type With Snap Action Micro Switch As Per M/S. Eversure Drg No. Eee/Afr/07. Complying To Rdso/Elrs/Tc/0072 - 2001 Rev-0. Technical Adoptors For Suction And Blower Pressure Switch Along With Ms Mounting Base Heavy Duty Wire Braided Flexible Air Pressure Pipe With Adoptors And Connecting Pipe..