Tank Insert Adapter Material Polypropylene For Container Size 275 gal For Container Type Tote Bung Connection Dia 2 in Max Operating Temp 104 Degrees F Min Operating Temp 12 Degrees F Compatible Chemicals Antifreeze (Coolant) DEF Wetted Materials Polypropylene For Use With DEF Tanks Agency Compliance ISO22241 Diesel Exhaust Fluid Compatible Yes Food Grade No