one with right-hand thread and the other with left-hand thread

PB battery and shipping

anti-static cleaner

connector TNC-7

6747 4-Port Valve - Flow is from any horizontal port to bottom port

fuelflange3 Care one with right-hand thread andA variety of cap neck styles and materials accommodate oil, fuel, hydraulic or water applications. Accessory options let you build the filler assembly you need. Three different strainers (see Alternate Items) provide varying degrees of filtration for 300 Series caps and necks to help you maintain clean fluids within your engine system. Special mountings match the type of connections you require. Not compatible with auto gas.