Darlly Carbon Pre-Filter - Treats 8,000 gallons

Darlly Pure-Stream Carbon Prefilter

Proprietary Carbon media that effectively removes metals.

The Closest Thing to filling your Spa with Bottled Water

Environmentally Friendly - Reduced Chemical Dependency - Quality Water 

Filters upto 8,000 gallons, so for a standard spa this will last many many refills.

A standard spa would be around 200 gallons, so this pre-filter should last 40 fills.