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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 />(C)I VV-4` <br />A U., OMEN 't.1.01••••1 <br />OPW 23 Series Open Atmospheric Vent (23-0044 23-0033 23-0055) <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 />2. Ordering Specifications and Replacement Parts <br />PAGE 12