"ID" (D x W x H)", 21- "OD",25 x 15 x 12- For, 8D Low "Molded of premium grade polyethylene. The seamless, heavy wall construction, combined with superior chemical resistance, eliminates concerns of electrolyte spills or contact with grease, oil etc.. The full flow ventilation features help ensure adequate cooling and will enhance the longevity of battery life. When properly installed these products comply with USCG code of Federal Regulations 33, Sub-chapter 183.420. Black.",
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