Replacement Piston
Replacement Piston

HNA's replaceable rubber pistons are made with nitrile rubber to resist extrusion and abrasion. These pistons are fully interchangeable with most other manufactures products. Available sizes are from 3″ through 7½″ and series are A, B, K and L.


- High tensile strength
- Rated for all drilling operations
- Maximum operating temperature is 250°F
- Extended service life