Chief Double-Acting Hand Operated Hydraulic Pump 1.3 Gal. 3/8 NPT

Manual hand pumps are designed to create flow of hydraulic oil, usually for activation of a hydraulic cylinder. They can be used in double acting applications.

Hydraulic piston hand pump with valve for double acting cylinder 1.5 CID

CHIEF: Pumps

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Magister Double Acting Hydraulic Pump, Hand Operated

HYDRAULIC HAND PUMP DOUBLE ACTING 1.8 GALLON CAPACITY 25 CCM/PUMP

Hand Pumps - Pumps & Accessories - Pumps & Valves

Hydraulic Pumps - Hand Pumps - Two-stage Pumps - Bailey Hydraulics

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Are there portable water sprayers that will allow me to spray a gallon or more of water without a faucet or hose? - Quora

Hydronics Independent Mechanical Supply

Hydraulic piston hand pump with changeover valve for double acting cylinder 1.5 CID with 3-quart steel tank