if you need to seal and pump spare part with a .... SERIES 1600 QS-200 A 1 SENA .625 1.250 SERIES 1800 ATLANTIC FLUIDICS QS-1000 B 1 .625 1.250 QS-601 B 1 .750 1.375 QS-356 C 1 1.125 1.750 QS....