Hot Springs C30 Replacement Filter Cartridge. Has a flat top and bottom with a open hole at each end.

Filter Dimensions:

Height: 265mm(end to end)

Width:150mm

Hole ID: 50mm

Compatible with: Vista , Aria, Envoy, Grandee, Jetsetter, Prodigy, Propel, Samoa, Sovereign, Square / SX , Hotspot R, Stride, Triangle, Triumph, Vanguard