Official Lay-Z-Spa filter cartridges keep your water safe and clean (12 filters in total)High quality cartridges filter out unwanted dirt and grime whilst optimising pump performanceCartridges can be easily cleaned and reused thanks to their high quality material blendHelps protect pump and heater from dirt which could cause damage and reduce its lifespanCompatible with all Lay-Z-Spa modelsAbout Shipping: All items will be shipped within 3 business days after the payment is received. Most times you will receive them within 8-12 days then. The specific delivery time is depend on circumstances.Any questions, please feel free to contact usDuring the shopping process, if you have any questions, please feel free to consult us, we will reply you within 24 hours, wish you a happy shoppingThanks for your cooperation and we'll make you feel satisfied.