Elongated, flexible polymer gasket include a tubular flexible polymer material body, a hollow chamber within the body extending uniformly the length of the body, and a plurality of individual openings through the sidewall forming the body and spaced apart from one another along its length. Each further includes a plurality of individual spring clip fasteners, each a length of metal wire bent to form an elongated, generally planar base portion with opposing major sides and an elongated, engagement portion extending transversely away from one of the opposing major sides. The maximum width dimensions of the base and engagement portions being greater than a maximum nominal dimension of the opening whereby the each individual spring clip member is captured in a separate one of the openings with the base portion within the hollow chamber and the engagement portion projecting traversely away from the base portion and the body.