BioGuard Back Up 2 Algae Preventative 23050BIO spafilters 1 System Kit ( 1

1 System Kit ( 1 Mineral Cartridge

Easy-to-use: simply dip the strip in water

Function: High-efficiency cartridge filter for debris and contaminant removal

Capacity: Hot tubs up to 600 gallons

Rolls everything away

BioGuard Back Up 2 Algae Preventative 23050BIO spafilters 1 System Kit ( 1BioGuard Back Up 2 Algae Preventative 23050BIO BioGuard Back Up 2 Highly Effective Algae Preventative stops algae before it crashes your pool partykeeping water sparkling and swims worry free. Wave Goodbye to Green Invaders! This powerhouse algaecide packs a non staining punch that prevents all sorts of algae with weekly dosing, ramping up protection exactly when warm water tempts trouble. Sun stable and non volatile, its surfactant sneaks into cracks