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The Aistar Overfill Prevention Valve is designed to prevent the overfill of underground storage tanks by providing a positive shut-off of product delivery. The shut-off valve is an integral part of the drop tube used for gravity filling. The Overfill Prevention Valve allows easy installation (without breaking concrete) and requires no special manholes.
Product Name | Overfill Prevention Valve |
Size | 4 inch |
Material | Aluminum Alloy |






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