Ratio: 1:1 Maximum Flow: 35-g.p.m. (133-l.p.m.) Displacement per cycle: 0.16-Gallons (0.60-Liters) Air Inlet: (Female) 1/4 - 18 N.P.T.F. - 1 Fluid Inlet/Outlet: 1 - 11-1/2 N.P.T.F. - 1 Rp 1 (1-11 BSP parallel) Max. operating pressure: 120-psi (8.3-bar) Suspended solids max. dia.: 1/8-in. (3.2-mm) Weight: lbs (kg) 666100-X-C (aluminum) 19 (8.6) 666101-X-C (stainless steel) 36 (16.3) 666102-X-C (cast iron) 31 (14.1) Note: Add 8-lbs (3.63-kg) for cast iron air motor section Maximum dry suction lift: ft (m) 20 (6.1) Sound Level: 70 PSI 60 Cycles/Min 64.5 db(A) Features: Mobility - Compact, rugged design allows for easy mobility Efficiency - Motor design delivers optimum air efficiency Reliability - ARO's patented 'Unbalanced' air valve ensures no-stall operation Versatility - Available in aluminum, cast iron or stainless steel to withstand tough chemical applications Environmentally Sound - Bolted construction for leak-free fluid handling Serviceability - Easy access to ball checks and fluid caps for maintenance and repairs Accessories: 66073-2 Air Line Connection Kit: contains Piggyback Filter / Regulator, pipe nipple & 5' section of hose 66100 Wall Mount 66975 Cycle Counter Kit 637118-C Air Section Service Kit 637119-XX-C Fluid Section Service Kit Pump Casing Materials: Aluminum Cast Iron Stainless Steel Diaphragm Materials: Viton PTFE w/ Santoprene backer Hytrel Santoprene Nitrile Neoprene E.P.R.