Domed covers provide extra wiring space|Flat back design fits flush against flat surfaces for more stable installation and provides more interior room for wire pulling and splicing|Interchangeable with competitors' Form 9 bodies, gaskets and covers-applications and installation dimensions are identical|Can be used as replacement covers for installed bodies or in new installations|Benefit from superior sealing, reduced inventory parts and faster installation times|Captive pan-head screws|High-strength, corrosion and weather resistant|1 cu-in as per NEC 314.16(A) wiring capacity