2 Pieces Spa Filter Cartridge for Pleatco PWW50 Unicel 6CH-940 Jacuzzi Spa Whirlpool Replacement 2 Pieces Spa Filter Cartridge compatible with Pleatco PWW50, Unicel 6CH-940, and Jacuzzi spa whirlpool systems Swimming Pool Filter made from 100% polyester fiber material, offering excellent dust and debris collection for pool and spa cleaning systems Product Size: Filter Diameter: 150 mm (5.9 in), Height: 241 mm (9.5 in), Thread Size: 46.5 mm (1.8 in) Product Features: Collapsible design increases filter surface area, ensures low pressure drop, high flow rate, and extended service life; reusable and easy to clean for cost-effective maintenance Product Compatibility: Designed to fit most indoor and outdoor above-ground pools, hot tubs, and spa systems Ideal Performance: These spa filters help maintain clean and healthy water by effectively capturing dirt and contaminants; compatible with various spa brands and models for reliable filtration