Waterway 4.0 HP Viper Spa Pump Wet End [2 1/2" MBT X 2 1/2" MBT] [56 Frame] (310-0140) spacovers A true-union spring check valve

A true-union spring check valve helps maintain one-way flow in a compatible plumbing system while also supporting easier removal for service

Helps maintain the intended look of the spa seating area

A wheel hub helps support and secure the wheel assembly of a compatible cleaner

When an existing control becomes stiff

1 inch slip / 3/4 inch spigot adapter-style connection

Waterway 4.0 HP Viper Spa Pump Wet End [2 1/2" MBT X 2 1/2" MBT] [56 Frame] (310-0140) spacovers A true-union spring check valveThe 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