Pair of Darlly SC838 filters / Bestway Lay-Z-Spa

This price is for a pair of filters.

Dimensions
Diameter: 102 mm (4")
Length: 80 mm (3 5/32")
Top: 54 mm (2 1/8") hole
Bottom: 54 mm (2 1/8") hole

Spa manufacturers who use this filter
Bestway (notably for the Lay-Z-Spa models Miami, Vegas and Monaco)

Part numbers
Bestway: BW 58323, BW 58239 (old part numbers)
Darlly : SC838 / 40022