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IMPORTANT: OPW products should be used in compliance with applicable federal, state, provincial, and local <br /> laws and regulations. Product selection should be based on physical specifications and limitations and <br /> ,. compatibility with the environment and materials to be handled. OPW MAKES NO WARRANTY OF <br /> FITNESS FOR A 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 make changes at any <br /> ` time in prices, materials, specifications and models and to discontinue models without notice or obligation. <br /> O P VV,* <br /> OPW 23 Series Open Atmospheric Vent(23-0044 23-0033 23-0055) <br /> r <br /> r <br /> V <br /> Open Atmospheric Vents are installed on the top of vent pipes from underground or aboveground fuel storage <br /> tanks. The vent cap and internal wire screen are designed to protect the tank vent lines against intrusion and <br /> blockage from water, debris or insects. These vents are always open to atmosphere and allow any pressure or <br /> vacuum in the tank to vent. <br /> Table of Contents: <br /> 1. Features <br /> ` <br /> 2. Ordering Specifications and Replacement Parts <br /> r <br /> r <br /> PAGE 12 <br />