Improve your hot tub experience and spa performance.
MINIMUM REQUIRED HOT TUB FILTER LENGTH IS APPROX 7",MINIMUM SPA FILTER HOLE DIAMETER IS 1-1/4"!!
Easy to install and unaffected by heat,works with your existing flow rates Installation,just Simply drop the spa stick into your existing filter and let the hot tub sticks do their work.
Warmshine hot tub sticks for Spas up to 500 Gallons/2000L,low maintenance and low cost with a duration up to 4 months,continuous keep your hot tub with low maintenance and in an e-co way.