BLADDER KIT – 5405K-EH, HYDRAULIC POWER UNIT – HO 30277, BLADDER KIT 54L N SS 1/4”BSPNOMINAL SIZE :, 54 LITRESMATERIAL : NITRILE/STAINLESS STEELSTEM, DIAMETER : 50 MMGAS CONNECTION : 1/4”BSP ST, STEEL GAS VALVENOTES :, THIS BLADDER KIT IS SUITABLE FOR 54 LITRE X 517 BAR, BLADDER ACCUMULATOR TYPESFCHW227291-B AND, 54 LITRE X 690 BARBLADDER ACCUMULATOR TYPE, FCHW227291-A