Plug for Freshwater™ Salt Sytem Metal and Scale Control Active Ingredient: 100% Sodium Carbonate

Active Ingredient: 100% Sodium Carbonate

Sirona™ Simply Waterline Control is an effective liquid formula that will help prevent the formation of waterline deposits in spas and hot tubs

Caldera® changed the color of the pillow on the Vacanza Series hot tubs

Bottom Center Hole Diameter: 1 7/8"

it would burn off quickly

Plug for Freshwater™ Salt Sytem Metal and Scale Control Active Ingredient: 100% Sodium CarbonateYou know that thing that looked like a defective salt cartridge and came with your new Freshwater salt system hot tub that you misplaced or threw out? That's called the Freshwater Salt System Plug and you need it! It's purpose is to keep air out of the Freshwater Salt System. You need the Freshwater Salt System Plug in a few situations: 1. If you ever move your hot tub. Before you move your hot tub, take out the salt cartridge and put the plug in. 2.