An assembly comprising: a liquid container (601, 3001); a mouth fill device (1001, 2201) mounted with respect to a mouth of the liquid container (601, 3001), the mouth of the liquid container (601, 3001) including exterior threads and the mouth fill device (1001, 2201) including: a circumferential shroud circumscribing an axis (1803, 3015) of the mouth fill device (1001, 2201), wherein the circumferential shroud includes an interior surface defining an interior passage extending along the axis (1803, 3015) to allow liquid to travel through the interior passage and into an interior containment area (603, 3013) of the liquid container (601, 3001); a protrusion mounted relative to the circumferential shroud and extending within the interior passage, the protrusion including an interior passageway and an interface surface; a dip tube port mounted relative to the circumferential shroud; a dip tube including an end mounted to the dip tube port such that the dip tube port allows the mouth fill device to support the dip tube relative to the mouth; and a liquid dispensing path is defined by the interior passageway of the protrusion and an interior channel of the dip tube; and a spray nozzle including a threaded coupler including interior threads, wherein the threaded coupler is configured to mount the spray nozzle to the mouth of the liquid container (601, 3001) and mate the interface surface of the protrusion with a complementary interface surface of the spray nozzle to form the interface connection by tightening the threaded coupler with the interior threads of the threaded coupler engaging the exterior threads of the mouth, wherein the dip tube port allows removal of the spray nozzle without requiring removal of the dip tube. a liquid container (601, 3001); a mouth fill device (1001, 2201) mounted with respect to a mouth of the liquid container (601, 3001), the mouth of the liquid container (601, 3001) including exterior threads and the mouth fill device (1001, 2201) including: a circumferential shroud circumscribing an axis (1803, 3015) of the mouth fill device (1001, 2201), wherein the circumferential shroud includes an interior surface defining an interior passage extending along the axis (1803, 3015) to allow liquid to travel through the interior passage and into an interior containment area (603, 3013) of the liquid container (601, 3001); a protrusion mounted relative to the circumferential shroud and extending within the interior passage, the protrusion including an interior passageway and an interface surface; a dip tube port mounted relative to the circumferential shroud; a dip tube including an end mounted to the dip tube port such that the dip tube port allows the mouth fill device to support the dip tube relative to the mouth; and a liquid dispensing path is defined by the interior passageway of the protrusion and an interior channel of the dip tube; and a circumferential shroud circumscribing an axis (1803, 3015) of the mouth fill device (1001, 2201), wherein the circumferential shroud includes an interior surface defining an interior passage extending along the axis (1803, 3015) to allow liquid to travel through the interior passage and into an interior containment area (603, 3013) of the liquid container (601, 3001); a protrusion mounted relative to the circumferential shroud and extending within the interior passage, the protrusion including an interior passageway and an interface surface; a dip tube port mounted relative to the circumferential shroud; a dip tube including an end mounted to the dip tube port such that the dip tube port allows the mouth fill device to support the dip tube relative to the mouth; and a liquid dispensing path is defined by the interior passageway of the protrusion and an interior channel of the dip tube; and a spray nozzle including a threaded coupler including interior threads, wherein the threaded coupler is configured to mount the spray nozzle to the mouth of the liquid container (601, 3001) and mate the interface surface of the protrusion with a complementary interface surface of the spray nozzle to form the interface connection by tightening the threaded coupler with the interior threads of the threaded coupler engaging the exterior threads of the mouth, wherein the dip tube port allows removal of the spray nozzle without requiring removal of the dip tube.