Hot Tub Serum Turbo Mineral Purifier | Spa Cartridge Brand_DuraVent and water that feels noticeably

and water that feels noticeably softer against your skin

Effective Length 4"

A cartridge that genuinely cleans back toward new performance is worth considerably more across its life than one with a higher pleat count that never quite recovers after the first few washes

and this cartridge covers the newer configuration with a handle on top and a 2-11/16 inch open bottom

Hot Tub Serum Turbo Mineral Purifier | Spa Cartridge Brand_DuraVent and water that feels noticeablyThe Hot Tub Serum Turbo Mineral Purifier is a slow release mineral cartridge that gives you cleaner, softer spa water the natural way and lets you cut your chlorine or bromine use dramatically. Sized to drop straight into your filter housing, it uses the time tested purifying power of silver and copper to keep bacteria and algae in check for up to four months at a time. The "triple action" name captures what it does: it reduces bacteria naturally,