Join the JHF Family

Behind every great business is a great group of people. We are always looking for the right people to join our team and help move our organization into the future. You bring the dedication and ambition. We'll teach you the rest.

As a family company, we're all in this together. In 1984, to sustain the family culture and future of John Henry Foster Company, Bob and Kathy Gau (then owners), instituted an ESOP - Employee Stock Ownership Plan. The retirement plan, bonus plan, and profit-sharing plan was gifted to employees, at no cost to them. To our employees, ESOP means ownership, security, opportunity, and family. Working towards a common goal helps us grow stronger relationships, a more sustainable future and ultimately, better lives - both personally and professionally. Today, John Henry Foster employees own 100% of the company.

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ARO® Pumps & FRLs — Sales, Service & Maintenance | John Henry Foster
John Henry Foster × ARO®

ARO® Pumps, Lubrication & FRLs — Sales, Service & Maintenance

As an authorized distributor, John Henry Foster helps you spec, supply, and maintain ARO® fluid handling equipment—air‑operated & electric diaphragm pumps, piston pumps, lubrication systems, and ARO‑Flo FRLs—for reliable, efficient production.

ARO pump hero

Products

What we sell & support

ARO AODD Pump

Air‑Operated Diaphragm Pumps (AODD)

Proven, stall‑resistant pumps for light‑to‑medium viscosity fluids—even with solids. Available in metallic and non‑metallic builds, with ATEX options.

ARO EVO Electric Pump

Electric Diaphragm Pumps (EVO Series™)

Energy‑efficient, sealless positive‑displacement technology for continuous duty and precise control—ideal when air is limited or energy costs matter.

ARO Piston Pump

Piston Pumps & Packages

Hydraulic and pneumatic piston pumps for transfer and extrusion—handling viscosities up to 1,000,000 cP for coatings, sealants, and adhesives.

ARO Lubrication Equipment

Lubrication Equipment

Oil and grease pumps in ratios from 3:1 to 100:1 for shop service through heavy equipment lube systems—plus meters, handles, and reels.

ARO-Flo FRLs

ARO‑Flo FRLs

Modular filters, regulators, and lubricators to protect your pneumatics and keep devices running at peak performance with precise oil feed control.

ARO Repair Kits

OEM Parts & Repair Kits

Genuine air & fluid section kits, diaphragms, checks, and seals to restore factory performance and protect warranties.

© John Henry Foster Company of St. Louis. ARO® is a trademark of Ingersoll Rand and used here for reference only.