U-POL Dolphin One Fill, All In One Premium Body Filler, Gallon 659
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The UPO 660, Dolphin One Fill, All-In-One Premium Body Filler formula is designed to build like body filler but is also smooth and pinhole resistant like glaze. The UPO 660, Dolphin One Fill is designed to sand to a super fine powder so it will not clog your sandpaper.