supply of set of plunger for eversure make air flow relay consist of following items:- ( 1 ) diaphragm pressure adjustment assly. with switch operating knob and spring complete for use in qvmt relay eversure make as per item ref. no.- 16, 17, 18, 19 and 21 of drg. no.- eee / afr / 05 rev.-1 ( color white ) qty.- 02 nos. ( 2 ) diaphragm pressure adjustment assly. with switch operating knob and spring complete for use in qvsi relay eversure make as per item ref. no.- 16, 17, 18, 19 and 21 of drg. no.- eee / afr / 05 rev.-1 ( color green ) qty.- 02 nos. ( 3 ) diaphragm pressure adjustment assly. with switch operating knob and spring complete for use in qvsl / qvrh relay eversure make as per ref. no.- 16, 17, 18, 19 and 21 of drg. no.- eee / afr / 05 rev.-1 ( color black ) qty.- 03 nos. [ warranty period: 30 months after the date of delivery ]