supply of set of toh kit for maintenance of silset of toh kit for maintenance of sil,set of toh kit for maintenance of sil make air dryer. each kit consisting of 07 items in 09 nos. (1) filter c oalescing to sil drg. no. 09870601 or wabco pt. no.653298, qty/set-01 no. (2) nut 3/8 hex lock to sil drg. no. 7111 5603 or wabco pt. no. 569374, qty/set-01 no. (3) washer 3/8 lock self sealing to sil drg. no. 09870701 or wabco pt. no. 6401300001, qty/set-01 no. (4) o ring 4.237 id to sil drg. no. 09872644 or wabco pt. no.590013, qty/set-01 no. (5) kit for humidity indicator rebuild to sil drg. no. 09891301 or wabco pt. no. 304338, qty/set-02 nos. (6) repair kit d rain cock to sil drg. no. 09891101 or wabco pt. no.309112, qty/set-01 no. (7) repair kit purge valve to sil drg. no. 0 9891201 or wabco pt. no. 309113 qty/set-02 nos. ]