Maytronics 9991432-R4 Dolphin Ultra Fine Cartridge Filters Set of 4
EZ pool supply will make sure you get the right product for you unit. They stand by their knowledge and helped me with another issue that saved me over $300 by clarifying conflicting information of other pool companies and the manufacturer. The company spent a great deal of time with me during peak season helping resolve an issue and instead of selling me something I didn't need and turned out was covered under warranty. Don't be a jerk, if you use the vast knowledge of the company, buy from them instead of saving pennies surfing for a better price. This is a company who puts customer service over short term profits.
As for the products I did buy. They were genuine Maytronic Product. When I ordered from Amazon, I received a substitute product that did not fit and the effort to return exceed the cost on my time and restocking fees. As a result, I tested the ethics of this company and pretended I needed to return some products. There were no hidden costs and they sent a return label within hour of the request.
If you want support, genuine parts that fit, and an ethical company look no further. Support EZ Test Pool Supply over Amazon.