Underground Enclosure Assembly Style - Underground Enclosure PG Cover Logo Blank Usable Interior Length 21 1/4 in Usable Interior Width 15 1/2 in Usable Interior Height 16 in Overall Length 25 in Overall Width 15 1/2 in Overall Height 18 in Cover Bolt Type 2 Stainless Steel Hex Head Bolts 3/8-16 x 2 3/4 UNC Load Rating - Underground Enclosure 8 000 lb