Set Of Demu Coach Air Tank Fitting For A [Set Of Demu Coach Air Tank Fitting For Air Release Cap As Per Annexure Sizes Given The Below, Is Specification 4985(2000). Consists Of: 1) Polythene Thread Cap For Tank Fitting Size 26mm X 1.5mm . 2) Rubber Cap Stopper Size 70mm Flap Thickness 3mm Stopper Size 42.3mm 00 Height 35mm Each Tank Fitting Ir Specification Irs S 63 . 3) C Pvc Tank Fitting Size 1 Inch X 1.5 Pitch For Air Release Tank. 4) Polythin Thread Cap Size 15mm Air Release Tank. 01