| 摘要 |
A coupling for a corrugated conduit has a housing of a rigid plastics material with two resilient spring catches on opposite sides to engage between corrugations on the conduit. A layer of a softer, elastomeric material is continuously joined on both the interior and exterior of the housing. On the interior, the softer material extends on a tapering surface to diametrically seal with a range of conduits. On the exterior, the layer of softer material forms both a flange on an annular ledge to seal with a cooperating coupling and manual gripping regions.
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