Add an extra layer of protection to your filter with the Wave Hot Tub Filter Sock. This fine mesh sleeve slips over your existing screw-on/threaded filter to catch finer dirt, oils and debris before they reach the cartridge, helping your filter work better and last longer. Made from durable, chemical-resistant material built to withstand regular spa use, it slides on and off in seconds with no tools required.
Worked better than the ones that game with my original wave spa. Adamw. Tue Jun 24 2025