【Replacement Cartridge Pool Filter Type VI】:FedAuto high-quality type VI spa filter works for all hot tubs requiring type VI spa filters. When it comes to our spa filter cartridge,you’re getting an incredible product at an incredible price. 【FedAuto Pool Filter Compatible With】:Dimensions: Outer diameter 104mm(4.2inch), inner diameter 52mm(2inch), height 80mm(3.14inch). Suitable for Bestway Lay-Z Spa #58323(58239 compatible), for Coleman SaluSpa 90352E filter and other inflatable hot tub systems(Vegas, Miami, Monaco,Helsinki,Palm Springs) - Fits All Spa Models Requiring Type VI Filters. 【Keep Water Fresh & Environmentally friendly】Our massage pool filters do good job to keep your pure spa jet massage water clean and fresh.keep your inflatable tubs cleaner than the leading competitors. FedAuto high-quality spa filters will get you through this season and beyond. 【Long Lasting & Easy to Clean】:FedAuto type VI replacement spa filters feature extra-durable plastic and quality Dacron paper pleats, so you can reuse them again and again. And our spa filters for hot tubs are so easy to clean, you’ll spend less time waxing and more time relaxing. 【Warm Tips】: For best result, clean your spa filter cartridge replacement often and replace every 2–3 weeks during heavy usage.