Everything you need to perform Annual Maintenance on your MSR liquid fuel stove and pump to ensure lasting reliability in the field. Services all MSR liquid-fuel stoves. Includes:. O-rings, jet and cable tool, lubricant. Durable carrying case. Weight: 1.3 oz. (37 g). . ?. . WARNING Can expose you to diisononyl phthalate, which is known to the State of California to cause cancer. P65Warnings.ca.gov