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.
Products
What We Sell & Support
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.
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.
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.
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
Modular filters, regulators, and lubricators to protect your pneumatics and keep devices running at peak performance with precise oil feed control.
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.