The Brand Story
King Technology: The Minnesota Company Behind the FROG
Minnesota is a long way from the nearest backyard pool season that lasts all year, yet it is where one of the best-known names in pool and hot tub water care took shape. Since 1978, King Technology has worked on a single question that every pool and spa owner eventually asks: how do you keep water clean with less chemical effort? Its answer became a little green frog.
Chapter 1 · 1978
A water care company in the North
King Technology dates its work to 1978 and is based in the Minneapolis suburbs of Minnesota. From the start its focus was on products that reduce the amount of chemicals pool and spa owners have to handle. Over the years its catalog grew to include chemical feeders, water maintenance products, cleaning products and testing supplies for residential pools, commercial pools and hot tubs.
Chapter 2
The FROG family
King Technology is best known for FROG, its line of mineral sanitizing systems for pools and hot tubs. The FROG name now covers a full family: Pool FROG for in-ground and above ground pools, Flippin' FROG for soft-sided pools, FROG @ease for hot tubs, FROG Serene, FROG Filter Mate, Instant FROG and FROG Bam, alongside other King brands such as New Water and Sani-King.
The idea behind FROG is to pair a mineral cartridge with a low, steady dose of chlorine or bromine delivered from a pre-filled cartridge, so owners measure and pour less and the water feels softer. The cartridges are color-coded and sized for specific systems, which keeps the routine simple: replace the cartridge when it runs out. For a hot tub owner who would rather soak than run a chemistry lesson, that simplicity is the whole appeal.
The Lineup
What King Technology makes today
HVAC365 carries a selection of FROG cartridges for pools and spas under filters and sanitizers:
- Mineral sanitizer cartridges: the FROG Serene cartridge refill kit and the FROG Filter Mate spa mineral cartridge, which sits in the filter core of a hot tub.
- Floating dispensers: the FROG @ease floating sanitizing system for spas up to about 600 gallons, which works with chlorine or bromine cartridges.
- Above ground pools: the FROG @ease SmartChlor cartridge, a pre-filled chlorine cartridge for above ground pool systems.
In the Field
Getting the most from a mineral system
Mineral systems work best when the basics are in place: balanced pH and alkalinity, a clean filter and enough daily circulation for the cartridge to do its job. Test the water regularly, shock as the system instructions direct, and replace cartridges on schedule rather than waiting for the water to turn. Use only the cartridges designed for your specific FROG system, and follow the label on every sanitizing product.
Hot tubs deserve extra attention. Their small volume and high temperature mean that a few bathers can use up sanitizer quickly, so a cartridge system that feeds continuously is especially useful there. Drain and refill the spa on the schedule the manufacturer recommends, clean the filter often, and keep the cover on between soaks to protect both the water and the cartridges.
At a Glance
King Tech at a glance
- Company
- King Technology, Inc.
- Founded
- 1978
- Location
- Minneapolis area, Minnesota
- Best-known brand
- FROG mineral sanitizing systems
- Other brands
- New Water, Sani-King
- Product focus
- Pool and spa water care
Questions
Frequently asked questions about King Tech
Who makes FROG pool and spa products?
FROG mineral sanitizing systems are made by King Technology, a water care company based in Minnesota.
When was King Technology founded?
King Technology has been developing pool and spa water care products since 1978.
What is a FROG mineral cartridge?
A FROG mineral cartridge releases minerals into pool or spa water and is designed to work alongside a low level of chlorine or bromine, so owners handle fewer chemicals.
Do I still need chlorine with FROG?
Yes. FROG systems are designed to work with a reduced, steady level of chlorine or bromine, usually supplied by a matching FROG cartridge, rather than replacing sanitizer entirely.
What is the FROG @ease system?
FROG @ease is a hot tub sanitizing system that uses pre-filled cartridges with minerals and chlorine or bromine, delivered from a floating or in-line holder.
