Challenger Series

Challenger I Series     

The Challenger I Series tanks combine high performance and designer appeal. The almond-colored two-part polyurethane paint finish over an epoxy undercoating provides hundreds of hours of UV and salt spray protection. Efficient and cost-effective, Challenger I Series tanks are designed with a patented controlled action, double diaphragm assembly that completely contains drawdown water in a pre-charged air atmosphere. This air buffer design means fewer problems with condensation.

Challenger I Series tanks have a threaded nut for easy installation of pump stand, a stainless steel elbow and an adjustable air charge. Clean, airtight welds are achieved using the most modern welding equipment available.

Our diaphragms are constructed with an FDA approved highgrade butyl. Flexcons positive lock internal clench ring system cannot slip and does not rely on the tank wall.The tank contains a stainless steel port diffuser, and water connection which directs flow upward and outward while locking the lower diaphragm in place.

All of Flexcons quality tanks are backed by a five year written, limited warranty. Challenger tanks are quality tested at four different stages on the production line. Tests include helium and high pressure tests to ensure the structural integrity of every tank.


  • ANSI/NSF Standard 61 Approved
  • S.S. Water Connection
  • Controlled Action Diaphragm (CAD)
  • Condensation Reducing Design
  • Stainless Steel Elbow
  • Two Part Polyurethane Finish
  • High Quality Brass Air Stem
  • Comprehensive Testing
  • 5 Yr Written Limited Warranty