Don’t be fooled by Flex-Lite’s lightweight and good looks. Beneath its super-strong, weather impervious composite shell is Flexcon’s patented, anti-microbial CAD-2 diaphragm that’s second to none! The chlorine-resistant 100% butyl diaphragm has a precision molded copolymer polypropylene lower water chamber for superior air and water separation. This patented design allows each size tank to have a properly sized water chamber, matched to the drawdown performance of that tank. When it comes to performance and durability, the CAD2 system can't be beat. Light in weight, heavy duty in performance!

Flex-Lite 35 US gal Fiberglass Pressure Tank

    • Injection-molded domes for precise, uniform wall thickness and consistently engineered dome profiles
    • High tech spin welding process permanently fuses injection molded domes to the extruded cylinder
    • Reinforced with durable, continuous strand fiberglass and sealed from the environment with weather-resistant epoxy resin, making it suitable for underground installation
    • Strong, 100% butyl diaphragm and copolymer polypropylene lower water chamber for maximum water and air separation
    • Silver-ion-infused anti-microbial liner to help eliminate possible water-born health hazards
    • Tough, injection-molded, rigid PVC connection for easy installation and lifetime performance
    • Rugged base engineered to withstand maximum loads and extreme environmental conditions
  • Construction

    • Top and bottom domes: Injection molded copolymer polypropylene
    • Shell: Extruded copolymer polypropylene
    • Outer shell: Fiberglass-wound, coated with epoxy resin
    • Water chambers: Top diaphragm is 100% butyl rubber, lower water chamber is anti-microbial, copolymer polypropylene
    • Base: Copolymer polypropylene
    • Connection: Rigid schedule 80 PVC
    • Air valve: Easy to access brass valve with o-ring seal
    • Testing: High pressure, seam weld, helium, final precharge check
    • System Connection: 1" NPT
    • Dimensions: 16.5" Diameter x 48.9" Height


    • Max. Operating Temperature: 120º F (49º C)
    • Max. Working Pressure: 125 PSIG (8.6 bar)
    • Tank Pre-Charge: 38 PSIG (2.6 bar)
    • Warranty: 5-Year Limited