3 Pack Guardian Pool Spa Filter Replaces Unicel C-4335 Series IV Rainbow Dynamic FC-2385 PRB35-IN

Is this a comparable replacement for the thermospas fl1008 filter?

Do these filter work for a Catalina swim spa mode 30274000?

How many times can you clean and reuse the filter in a hottub ?

Product dimensions state that it is 1.9 x 2 x 3.7 inches ....that cant be right!? The C-4335 is 9.5" x 5.125"