Clear Choice Spa/Hot Tub Start-up Kit with Micron Filter Sleeve (recommended for first time users) This Kit contains (1) 18-24 months supply of Spa Drops. (1) Micron Filter Sleeve, good for approx. 4 years. (1) Hose Pre Filter, good for 1 to 2 spa fills and topping off. (1) Spa Prep, good for 1 to 2 water change purges.