Abstract: A safety harness to be used in conjunction with a pressurized container such as a swimming pool filter. The swimming pool filter includes a lid which at times can become stuck. The common procedure to remove the stuck lid is to supply pressure within the container until the lid is explosively separated from the container. The safety harness of the present invention is to be loosely mounted across the lid and fixedly attached to the side wall of the container so that when the lid is explosively blown it will be restrained in place and not caused to be propelled some spaced distance from the container.