2pcs SPA Bathtub Swimming Pool Cleaning Filter Cartridges For DreamOval PDM30

1. For DreamOval PDM30 2. Designed for various standard swimming pool and spa filtration systems, replaceable with standard filter cartridges of the same size, easy to install and ready to use. 3. Made with high-quality non-woven filter cloth; unique folded design effectively expands the filtration area. 4. Effectively intercepts sediment, rust, hair, leaves, and tiny suspended particles in the water, keeping it clear and transparent. 5. High-strength injection-molded end caps at both ends of the filter cartridge; robust central frame, strong pressure resistance, maintaining structural stability even under high water pressure, preventing deformation and extending service life. 6. Regularly rinse the folds with a garden hose to restore filtration performance; economical and environmentally friendly. 7. Each set contains 2 filter cartridges. To ensure filtration effectiveness and water hygiene, it is recommended to clean or replace the cartridges every 2-3 weeks (depending on usage frequency and water quality). 8. Length: 9 3/4 inches, outer diameter: oval 6-1/4" x 5-1/4", top 3" Open; bottom 4 1/8" x 3" open oval