An enclosure arrangement comprising: a base defining at least one cable port at a first end, the cable port leading from an exterior of the base to an interior of the base; a duct extending through the at least one cable port and defining an axial passage therethrough; a cable fixation assembly coupled to an optical fiber cable, the cable fixation assembly retaining at least one strength member (182, 183) of the optical fiber cable; and a seal block assembly (120, 140) disposed in the duct, the seal block assembly (120, 140) defining an axial passage through which the optical fiber cable passes, the seal block assembly (120, 140) being secured to the duct, the seal block assembly (120, 140) being latched to the interior end of the duct, the seal block assembly (120, 140) extending from a first end to a second end, and wherein the seal block assembly (120, 140) includes: a first housing portion (131, 151) that extends from a first end (122, 142) to a second end (123, 143) and defines at least one axial passage extending therebetween, the first housing portion (131, 151) forming the first end of the seal block assembly (120, 140; a second housing portion (132, 152) that defines at least one axial passage; characterized in that the duct includes stops extending inwardly into the axial passage at an interior end of the duct; and the seal block assembly (120, 140) also includes: a gasket (130, 150) disposed between the first housing portion (131, 151) and the second housing portion (132, 152), the gasket (130, 150) defining at least one axial passage that aligns with the at least one axial passage of the first housing portion (131, 151) and the at least one axial passage of the second housing portion (132, 152); and an activation assembly (133, 153) that axially compresses the gasket (130, 150) when actuated; wherein the first end (122, 142) of the first housing portion (131, 151) defines a stop surface (125, 145) and including at least one latching finger (126, 146) extending outwardly past the stop surface (125, 145) in an axial direction. a base defining at least one cable port at a first end, the cable port leading from an exterior of the base to an interior of the base; a duct extending through the at least one cable port and defining an axial passage therethrough; a cable fixation assembly coupled to an optical fiber cable, the cable fixation assembly retaining at least one strength member (182, 183) of the optical fiber cable; and a seal block assembly (120, 140) disposed in the duct, the seal block assembly (120, 140) defining an axial passage through which the optical fiber cable passes, the seal block assembly (120, 140) being secured to the duct, the seal block assembly (120, 140) being latched to the interior end of the duct, the seal block assembly (120, 140) extending from a first end to a second end, and wherein the seal block assembly (120, 140) includes: a first housing portion (131, 151) that extends from a first end (122, 142) to a second end (123, 143) and defines at least one axial passage extending therebetween, the first housing portion (131, 151) forming the first end of the seal block assembly (120, 140; a second housing portion (132, 152) that defines at least one axial passage; a first housing portion (131, 151) that extends from a first end (122, 142) to a second end (123, 143) and defines at least one axial passage extending therebetween, the first housing portion (131, 151) forming the first end of the seal block assembly (120, 140; a second housing portion (132, 152) that defines at least one axial passage; a gasket (130, 150) disposed between the first housing portion (131, 151) and the second housing portion (132, 152), the gasket (130, 150) defining at least one axial passage that aligns with the at least one axial passage of the first housing portion (131, 151) and the at least one axial passage of the second housing portion (132, 152); and an activation assembly (133, 153) that axially compresses the gasket (130, 150) when actuated; wherein the first end (122, 142) of the first housing portion (131, 151) defines a stop surface (125, 145) and including at least one latching finger (126, 146) extending outwardly past the stop surface (125, 145) in an axial direction.