TOTAL AIR VOLUME: 1.38 CUBIC FT. 1 SLOT PORT (DIMENSIONS: H-2 W-4 L-10). 5/8 HIGH DENSITY MDF WOOD. SEALED WITH HIGH QUALITY SILICONE. NOT ALL 8 SUB'S WILL FIT.The item "14-2018 Chevy Silverado Gmc Sierra Crew Cab Sub box 8 Dual Ported Sub Enclosure" is in sale since Friday, April 19, 2019. This item is in the category "Consumer Electronics\Vehicle Electronics & GPS\Car Audio & Video Installation\Speaker/Sub. The seller is "ground-shaker" and is located in Los Angeles, California. This item can be shipped to United States, Canada, United Kingdom, Denmark, Romania, Slovakia, Bulgaria, Czech republic, Finland, Hungary, Latvia, Lithuania, Malta, Estonia, Australia, Greece, Portugal, Cyprus, Slovenia, Japan, China, Sweden, South Korea, Indonesia, Taiwan, South africa, Thailand, Belgium, France, Hong Kong, Ireland, Netherlands, Poland, Spain, Italy, Germany, Austria, Bahamas, Israel, Mexico, New Zealand, Philippines, Singapore, Switzerland, Norway, Saudi arabia, Ukraine, United arab emirates, Qatar, Kuwait, Bahrain, Croatia, Malaysia, Brazil, Chile, Colombia, Costa rica, Dominican republic, Panama, Trinidad and tobago, Guatemala, El salvador, Honduras, Jamaica, Antigua and barbuda, Aruba, Belize, Grenada, Saint kitts and nevis, Saint lucia, Turks and caicos islands, Barbados, Bermuda, Ecuador, Egypt, Guadeloupe, Martinique, Oman, Pakistan, Viet nam, Russian federation.