<p> 6-Piece Pool Hot Tub Filter Set - D-Type - Summer Wave Replacement Filter</p><p>Compatible Models: Compatible with Summer Waves, Summer Escapes and compatible with Intex Type D filters for pool and spa cleaning systems; Compatible with SFS-350, RP-350, RP-400, RP-600, RX-600, SFS-600 cartridges.High quality filter cartridge: keep your pool water crystal clear and give your pool pump the Type D filter cartridge achieves its best performance.Features: The innovative 'dirt-lock' technology allows the fabric to absorb far more impurities than conventional fabrics. This filter effectively removes hair, leaves, dust, debris, sand, etc. Enjoy clean leisure in your pool and spa. Easy to clean: Uniform, high-performance trilobal fabric makes it easy Catching and releasing stains so you can easily wash the filter after use. li&gt; Package includes: 6 replacement filter cartridges, it is recommended to replace the cartridges every 2 weeks to keep your spa running at peak performance. &lt; b&gt;Product Description These filter cartridges feature a patented chlorine basket that keeps the chlorine tablet suspended in the filter and regulates the amount of chlorine released into the water. Replacement hot tub accessories can provide clean water to swimming pools and spas. Your pool water will be clean and beautiful all summer long, giving you a much needed vacation in your own backyard. Designed for use with outdoor inground pools, these filters should be replaced every two weeks. The integrated chlorine tablet hangs in the filter. Dimensions: &lt; p&gt;L??nge: 9.5 cm. Outside diameter: 10.5 cm. Top: 2" open. Bottom: 2" open.</p>