https://br.omega.com/omegaFiles/green/pdf/FL2000.pdf

Accuracy:
    Models FL-2001–FL-2025: ±5% F.S.
    Models FL-2031–FL-2069: ±3% F.S.
    Models FL-2071–FL-2128: ±2% F.S.
Float: Black glass stainless steel
Body: Clear acrylic
Seals: Buna O-Rings with brass or PVC fittings FKM O-Rings with stainless steel fittings
Pressure: 100 psig max @ 21°C (70°F)
Temperature: 65°C (150°F) max @ 0 psig
Fittings: Brass std; stainless steel optional except for FL-2071 through FL-2128, which have 1 NPT PVC fittings only
Valves:
    Models FL-2001 through FL-2069: brass standard; stainless steel cartridge type (optional)
               FL-2071 through FL-2128: optional plastic in-line gate