The Model 303 HD concrete sprayer for heavy-duty applications includes a valve that provides absolute tip shut off. Built with acetone-resistant parts and a heavy-density polyethylene tank, the spray system includes a wide mouth funnel top for easy filling, 18-in. angled brass extension, and 4-ft. chemical-resistant hose. Also available are the Model 403 professional sprayer for acid, etching, and staining applications; and the Model 603 professional concrete sealer and form oil sprayer, both of which provide features similar to the 303 model. B&G Equipment Co. 800-544-8811.