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 HNA's high-strength, triple reduction, forged steel triplex fluid end modules are made from 4135 alloy steel, heat treated for a long working life, machined to perfection and packaged for delivery with anti-corrosion protection. The precision-made jewelry, like the exterior finish, reflects the superior quality inside.
Features:
- Completely interchangeable with OEM 
- Premium forged alloy steel 
- Made on CNC boring mills 
- Strict computer controlled heat treat procedures 
- Rigid inspection 
- Rated for all drilling operations up to 7,500 psi

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