Nature2 G45 Mineral Cartridge Replacement for Pro G, Pro G Plus (to 45K Gal) - Single Unit state_Maryland They are an outside screw

They are an outside screw and yoke design with a bolted bonnet and ANSI Class 125 flanged ends

This Warning No Diving Rocks Below With Graphic Sign measures 18 x 24 inches

beach front and facility signs are of the highest quality and predrilled for easy hanging

The Pentair C-Series motors have been engineered to meet the rugged demands of the commercial pool industry

This Authorized Personnel Only aluminum sign measures 18 x 12 inches

Nature2 G45 Mineral Cartridge Replacement for Pro G, Pro G Plus (to 45K Gal) - Single Unit state_Maryland They are an outside screwThis is a Nature2 G45 Mineral Cartridge replacement filter cartridge for the Ppro G and Pro G Plus (to 45K gallons) filters. The Nature2 ProG cartridges can be used on the Zodiac Professional G or Pro G Plus filters for pools up to 45,000 gallons. Nature2's patented technology uses minerals to kill bacteria and control algae for up to six months. Nature2 mineral cartridges are environmentally friendly and produce sparkling clean pool water that is