Pad plunger assembly with concave pad subassembly
Pad plunger assembly with one-piece locking end members
Plunger for well casings and other tubulars
Plunger for well casings and other tubulars
Plunger lift control
Plunger lift tool
Pressure-operated oil and gas well swabbing device
Pressure-operated valving for oil and gas well swabs
Production plunger
Pump tool