A bend support bracket for flexible polymeric tubing, the bracket being installable inside a wall and having an arcuate guide surface, an oppositely disposed arcuate gripping surface and a flexible attachment arm, the flexible attachment arm having a fixed end that is unitarily molded to the body, a free end that comprises a positioning groove into which a portion of an inwardly facing wall of an aperture in a bracket support strap is receivable, and an outwardly facing, arcuate biasing surface disposed between the first and second ends, wherein the application of manual pressure to the biasing surface biases the positioning groove into alignment with the aperture wall so that a portion of the aperture wall is receivable in the positioning groove.