Light up your Pure Spa bubble spa and keep it clean with the Intex Pure Spa battery LED light and S1 replacement cartridges. This LED light is a simple way to set the mood or create an ambiance that will take your hot tub to the next level. It has 5 different LED colors and can stay in single color or color-changing mode. After 2 hours, the light automatically shuts off. This light operates off of 3 AAA batteries, which are not included. For an easy way to amp up your outdoor spa, look no further than the Intex Pure Spa battery LED light for bubble spa! This is the authentic replacement cartridge for your Intex Pure Spa. Included are 6 pairs of filters for a total of 12 cartridges. Replace your filter cartridges regularly for the best results. It is recommended that you replace cartridges every 2 weeks to maximize your spa's performance. Help ensure the longevity of your Intex Pure Spa by regularly choosing Intex Pure Spa type S1 pool filter cartridges.