Specially-formulated Spa & Hot Tub Water Care Products

Hot tub water care can be daunting, but with the SPA FROG^® integrated system, treating your spa water is easy – nothing to pour, nothing to measure. Simply open the SPA FROG cap, select your use level on the mineral and bromine cartridges, insert them into the integrated housing and test your water weekly. The SPA FROG system will continually dose the water, so it's always working for you. The system uses fewer chemicals than traditional systems and contains a combination of specially-formulated minerals and bromine that are gentler on your skin.

SPA FROG Replacement Cartridges

Available only from your local Caldera Spas dealership our custom SPA FROG bromine cartridge contains 200 grams of bromine so it lasts longer than a standard SPA FROG bromine cartridge. The blue mineral cartridge contains the only type of minerals compatible with bromine, and reduces the total amount of bromine required. Replace bromine cartridges monthly and minerals four times a year to maintain sparkling clear water. (With regular use. Varies by spa size.)

Monarch^® CD Ozone System

The high-output Monarch Corona Discharge (CD) ozone system gives you another way to reduce the need for hot tub chemicals. The Monarch CD ozone system continuously mixes highly concentrated ozone into the water as it travels through a specially designed contact chamber. Contaminants are instantly oxidized, helping to keep your spa water fresh, clean and clear.

Monarch Silver Cartridge

The use of silver ions inhibits the growth of bacteria and reduces daily spa water care for naturally fresh water. This solution for hot tub chemicals saves time and maintains water quality.

MPS Non-chlorine Oxidizer & Test Strips

Use in conjunction with the Monarch CD ozone system and silver cartridge to help maintain sparkling clean water in your Caldera hot tub.

Monarch MPS Plus^®

A non-chlorine oxidizer with aromatherapy, Monarch MPS Plus helps keep spa water crystal clear, and enhances your hot tub experience with pleasing scents, all in one convenient hot tub chemical product.

Start With Clean Water

To ensure the cleanest, softest water, use the Clean Screen^™ pre-filter and Vanishing Act^™ calcium remover, two innovative water care products that work especially well with the SPA FROG system to optimize water treatment. Use the Clean Screen pre-filter to ensure only fresh, clean water is introduced into your spa. Then, reduce your water hardness with the Vanishing Act calcium remover and create softer feeling water. Together, these chemical-free treatments help you experience superior water quality and help to extend the time between water changes.

Clean Screen^™ Pre-Filter

The Clean Screen pre-filter prevents organic contaminants, tannins, copper, iron and other metals from entering your spa water. It's simple to use – just attach it to a garden hose, fill your spa and enjoy fresh, clean water.

Vanishing Act^™ Calcium Remover

To soften hard water without chemical additives, use the Vanishing Act calcium remover. Softer water leaves your skin feeling silkier, and helps protect your Caldera spa components from the damaging effects of hard water. Use of the Vanishing Act calcium remover may help reduce the need to change your spa water as often.