diff --git a/homeassistant/components/flo/sensor.py b/homeassistant/components/flo/sensor.py
index b2a0afdcb13..6d023731c86 100644
--- a/homeassistant/components/flo/sensor.py
+++ b/homeassistant/components/flo/sensor.py
@@ -12,6 +12,7 @@ from homeassistant.const import (
     UnitOfPressure,
     UnitOfTemperature,
     UnitOfVolume,
+    UnitOfVolumeFlowRate,
 )
 from homeassistant.core import HomeAssistant
 from homeassistant.helpers.entity_platform import AddEntitiesCallback
@@ -98,8 +99,9 @@ class FloCurrentFlowRateSensor(FloEntity, SensorEntity):
     """Monitors the current water flow rate."""
 
     _attr_icon = GAUGE_ICON
-    _attr_native_unit_of_measurement = "gpm"
+    _attr_native_unit_of_measurement = UnitOfVolumeFlowRate.GALLONS_PER_MINUTE
     _attr_state_class: SensorStateClass = SensorStateClass.MEASUREMENT
+    _attr_device_class = SensorDeviceClass.VOLUME_FLOW_RATE
     _attr_translation_key = "current_flow_rate"
 
     def __init__(self, device):