Set of Provision of Trap Chamber for collecting coal/ dust particles in HHP Locomotives as per RDSO modification sheet no. MP. MOD. BK. 01. 03. 21, Rev. 00 dated 23. 03. 2021. One set consists of 03 items as per details following: ( 1 ) Female Tee with Union On One side only, Size 1- 1/ 4 inch, Qty. 01 No./ set ( 2 ) 2 inch long female connector of size 1- 1/ 4 inch, Qty. 01 No. set ( 3 ) Hex head Plug of 1- 1/ 4 inch, Qty. 01 No./ set.