Abstract: The present invention provides a concrete form comprising a housing having a foot portion and a leg portion. The leg portion of the housing has a top end and a bottom end. The leg portion of the housing consists of four equi-spaced identical semi-conical wall segments and four concave wall segments joining adjacent semi-conical wall segments to provide a generally truncated conical configuration with a rounded cross or four leaf clover horizontal cross section. The top and bottom end of the leg portion is open. The foot portion is an inverted dish shape. The dish shaped foot portion has an annular side wall and a top wall. The bottom end of the leg portion is coaxially connected to the top wall of the dish shaped foot portion. An opening is provided in the top wall of the dish shaped foot portion the same size and shape as the internal cross-section of the bottom end of the leg portion.