FROG® @ease Cartridge Holder | Sundance 780/880/980 Best Selling Spas & Pools Like other products containing potassium

Like other products containing potassium monopersulfate (MPS)

Add directly to the pool water 8 fl oz per 10

Skim Mor intercepts both categories of contaminant at the skimmer — before either one reaches the filter

Front EZ Access™ grease management trap

FROG® @ease Cartridge Holder | Sundance 780/880/980 Best Selling Spas & Pools Like other products containing potassiumThe FROG @ease System Cartridge Holder is the bracket that mounts the FROG @ease mineral and SmartChlor cartridges onto your Sundance Spa's primary filter. Without it, the @ease cartridges have nowhere to seat so for a Sundance owner running the @ease system, the holder is the bridge between the cartridges you buy and the spa they need to live in. Here's the part that confuses most customers: this holder is built into most Sundance Spas built from