Conversion kit for existing spray booms includes a three foot downpipe (1/4" NPT), trigger valve (6590) with valve handle, forearm support (602), 90 degree elbow (AN914-2D), and quick breakdown. The one man offset boom is designed to apply pesticides while walking to one side of the treated area. These booms are equipped with an extended 36" downpipe, forearm support, and quick breakdown. The three foot downpipe allows the spray nozzles to be offset, while the forearm support provides comfort and stability. Tips and screens are not included.