28′ Flow Back Trailer with 3-Phase Separator $45,000 $45,000.00 28′ Flow Back Trailer with 3-Phase Separator $45,000 Separators November 20, 2021 28′ Flow back trailer with canopy top containing: ASME Code 24″ X 8′ 1440# Horizontal 3-Phase Separator ASME Code 20″ X 5′ Vertical Sand Separator