Badger Dry Chemical Fire Extinguisher with 20 lb. Capacity Waste Capacity-7 gallons this is commonly specified as

this is commonly specified as a vertical grab bar for shower transfer assist per §608

Capacity (Volume): 4 oz

while the overall cost per use is comparable

Easy-loading design

Recommended dilution: preset (1:128)

Badger Dry Chemical Fire Extinguisher with 20 lb. Capacity Waste Capacity-7 gallons this is commonly specified asFire Extinguisher, Extinguisher Type Dry Chemical, Class BC, UL Rating 4A: 60B: C, Capacity 20 lb., Extinguish Agent Type Monoammonium Phosphate, Height 53 45 64", Diameter 9 1 4", Cylinder Material Steel, Operating Pressure 195 psi, Discharge Time 20 sec., Range Max. 30 ft., Bracket Included No, Handle Material Stainless Steel, Valve Material Brass, Rechargeable Yes, Disposable No, Hose Included Yes