4 Inch Duplex Air Pressure Guage (Flush Mounted) For Ar-Pr As Per Rdso Drg. N O. Skdp-3509 Alt-3 With 110 V Operating Voltage Led Arrangement As Per Rdso Drg. No. Skdp- 3518 Alt-2. [ Warranty Period: 30 Months After The Date Of Delivery ] [Quantity Tolerance (+/-): 5 %Age , Item Category : Normal , Total Po Value Variation Permitted: Max 8 Lacs ] ]