Drum Package -- Basic Non-Metallic: 14.4 GPM (54.5 lpm) Metallic: 12.0 GPM (45.4 lpm) flow. Drum Package -- Dispense Non-metallic: 14.4 GPM (54.5 lpm) Metallic: 12.0 GPM (45.4 lpm) flow. Drum Package -- Transfer Non-metallic: 14.4 GPM (54.5 lpm) Metallic: 12.0 GPM (45.4 lpm) flow.