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IMPORTANT: OPW products should be used in compliance with applicable federal, <br /> state,provincial,and local laws and regulations. Product selection should be based on <br /> physical specifications and limitations and compatibility with the environment and <br /> materials to be handled. OPW MAKES NO WARRANTY OF FITNESS FOR A <br /> PARTICULAR USE.All illustrations and specifications in this literature are based on the <br /> latest product information available at the time of publication. OPW reserves the right to <br /> make changes at any time in prices, materials, specifications and models and to <br /> discontinue models without notice or obligation. <br /> 400 <br /> OPW 23 Series Open Atmospheric Vent(23-0044 23-0033 23-0055) <br /> I <br /> i <br /> u! <br /> i <br /> GI <br /> Open Atmospheric Vents are installed on the top of vent pipes from underground or <br /> aboveground fuel storage tanks. The vent cap and internal wire screen are designed to <br /> protect the tank vent lines against intrusion and blockage from water,debris or insects. <br /> These vents are always open to atmosphere and allow any pressure or vacuum in the tank <br /> to vent. <br /> Table of Contents: <br /> 1. Features <br /> 2. Ordering Specifications and Replacement Parts <br />