Waterway 4.0 HP Viper Spa Pump Wet End [2 1/2" MBT X 2 1/2" MBT] [56 Frame] (310-0140) plugs It is a good fit

It is a good fit when the original valve is leaking

this motor delivers long-term durability in demanding pool and spa environments

more distinctive feel that made the seat stand out from simpler jet positions

or no longer providing dependable gas control

Waterway 4.0 HP Viper Spa Pump Wet End [2 1/2" MBT X 2 1/2" MBT] [56 Frame] (310-0140) plugs It is a good fitThe Waterway 310 0140 wet end is designed for compatible 4. 0 HP Viper spa pump applications and features 2 1 2 inch MBT by 2 1 2 inch MBT connections in a 56 frame configuration. A wet end like this is useful because it restores the full hydraulic side of the pump while keeping the larger connection format and 56 frame design used by the original Viper assembly. Complete wet end replacements are especially practical when the wet side has broader wear