Unicel C-6430 – 30 Sq. Ft. Hot Springs/Watkins Mfg. Cartridge Filter

Measures: 6″ (OD) x 10-1/2″ (Length) with 2″ (1-15/16″) open hole in both top & bottom end caps.  Can substitute a Unicel C-6330 – 30 Sq. Ft. Hot Springs/Watkins Mfg. cartridge filter – they have the exact same measurements.

Typically most Hot Springs models spas will use either 3 ea. or 5 ea. cartridge filters in the spas, to ensure that all of the plumbing is fully circulated through the filters.