Oil Tank Accessory Kit is for 275 Gal. Horizontal oil tank replacement installations. Kit includes leak-proof 2 in. Vent Alarm/Gauge with easy to read break-resistant plastic vial suitable for outdoor conditions. Also includes 2 in. zinc Speed-fill 45° Connector, 2 in. zinc Speed-fill Cap and 2 in. zinc Vent Cap. Disclaimer - Building codes governing the installation and operation of residential home heating oil tanks vary greatly across the United States. They have become much more stringent in recent years as the potential environmental hazard posed by oil leaks has become recognized. This kit was developed for contractors in a certain geographic regions where oil tanks are replaced when they reach a certain age. The kit contains the four key items that contractors needed when they replace tanks in this area. Therefore this kit does not and was not intended to include all the items needed to install an oil tank everywhere. Please consult the local authority in your area before commencing the installation of a tank.