Store › Jabsco Service Kit f/50880 Series Pumps [SK880] Jabsco Service Kit f/50880 Series Pumps [SK880] $61.99 Service Kit for 50880 Series PumpsFeatures: Contains - 2 Joker Valves, Diaphragm, and Ports For the 50880 Series Includes Service Instructions Actual Weight: 0.13 kg (Approximately 0.33 kg packed) Add To Cart Added! Service Kit for 50880 Series PumpsFeatures: Contains - 2 Joker Valves, Diaphragm, and Ports For the 50880 Series Includes Service Instructions Actual Weight: 0.13 kg (Approximately 0.33 kg packed)