These single chamber brake fluid reservoirs have a 158ml capacity and are available with 2 different thread options: 7/16" x 20 UNF (-4 JIC) or 15/16" -16 (direct fit to Tilton 76 series master cylinders*)Large opening for easy fillingScrew top for a leak free closureChoice of thread to suit different fitment applications*Note - only fits the new style 76 series master cylinders with the black cap, not the older style with the gold cap.