Part Number: 8.720-676.0 Cross Reference Part Number(s): 83-2812, 87206760, AR002812 Manufacturer’s Part Number (MPN): AR2812 This 8.720-676.0 Annovi Reverberi Unloader Repair Kit can be used on a variety of AR unloaders. Included in the kit are 15 o-rings and 2 backup rings, to correct low pressure issues and leaking within the pressure regulating valve. AR Unloader Seal Repair Kit, Annovi Reverberi Part Number AR2812 is for use with the following AR Pump Unloader Valves: AR20608 Unloader Valve, 2600 PSI 5.5 GPM, AR – 8.712-582.0 AR20821 Unloader Valve, 2600 PSI 5.0 GPM, AR – 8.712-564.0 AR20890 Unloader Valve w/ 2.0 mm Injector, 2600 PSI 3.0 GPM, AR – 8.712-573.0 AR21039 Unloader Valve w/ 2.0 mm Injector, 2600 PSI 3.0 GPM, AR – 8.712-576.0 AR21040 Unloader Valve w/ 2.2 mm Injector, 2600 PSI 3.0 GPM, AR – 8.712-575.0