Purchase Orders › HydraSUM - 1 L x 12 Image 1 of 1 HydraSUM - 1 L x 12 $800.00 Multi-purpose hydraulic fluid supplement in a 1 Litre jug. Comes in a case of 12 jugs. Quantity: Order Added! Multi-purpose hydraulic fluid supplement in a 1 Litre jug. Comes in a case of 12 jugs.