The Challenger Series are made in the USA. They are available in vertical models, and are well suited for large residential and light commercial applications.
- Tank: 16 gauge cold rolled steel
- Finish: Appliance quality paint for indoor or outdoor installation
- Water Chambers: Top chamber is 100% butyl rubber, lower water chamber is copolymer polypropylene
- Connection: Welded steel NPT thread
- Testing: High pressure, seam weld, helium, final precharge check
- Air Valve: Brass valve with O-ring seal