W28166 Replacement for Nature2 A30 Mineral Cartrigde 3-Port for All Zodiac Nature2 A/Pro A Plus Vessel W20040 & Limited Vessel W20034 Filter Aboveground Swimming Pool Up To 30,000 Gallons W25966

["Great Compatibility — This A30 Replacement Mineral Cartridge fits All Zodiac Nature2 \"A\" or Pro A Plus Aboveground Vessel W20040 and Limited Vessel W20034 Filter System. Treats for all sizes of above-ground pools up to 30,000 gallons. Fits all Limited Vessel (Three Posts) and Standard Vessel (Two Posts). Professionally manufactured and tested to meet or exceed OEM specifications to provide direct and reliable replacement for OEM A30, W28166, W25966, W28165, W26765, 2704-010, 300379.","Advanced Controlled Release Technology — This nature-friendly, high-efficiency, reliable and low maintenance technology produces wonderfully cleaner, clearer, healthier and softer pool water that is purer, fresher, gently soothing and no chemicals. Save your money and time, improve the water quality and the swimming experience for you, your family and your friends.","Perfect Design — Optimizes your system, reduces the need to frequently add heavy chemicals and reduces potential for unpleasant odors and eye or skin irritation. Easy water balancing and maintaining, will not affected by heat or heavy bather loads and will not damage your pool equipment. No more green or dirty pool water! Easy to install and use in seconds. Cartridge replacement every 6 months is recommended for optimal performance.","Superior Quality — Advanced proven natural minerals and ceramic particles, with premium grade CNC machined reinforced thermoplastic PVC housing, strength and durability, anti-impact and anti-deformation, anti-corrosion and aging resistance, never peel, fade or leak, high and low temperature resistance, all-weather performance and long-lasting reliability.","100% Satisfaction Guarantee — If you're not 100% satisfied with our items, simply return it for refund within 30 days. Support 12-month Warranty. Professional & Sincere Service allows you to take no risks to purchase in E-cowlboy!"]