2.5" Split Nut Standard Flange
The Waterway Viper is a high volume pump that has an increased flow rate compared to the Waterway Executive 56 because of its 2.5" Intake and 2.5" discharge. Comparable to the Gecko XP3 Series Pump. It is best to always replace your pump with one that is the same or close to what you have. If you have any questions please contact us.