Unicel FG-2417 Single Rectangular DE Grid Replacement Swimming Pool Filter with Center Hub Port Compatible with Anthony Apollo and Flowmaster welding It has improved flame sensing

It has improved flame sensing capabilities

Also fits Pentair MiniMax NT LN Heater with 6800 Controller

Keyed Diff

Fits all Hayward micro clear filters both resin and stainless steel

Initial efficiency

Unicel FG-2417 Single Rectangular DE Grid Replacement Swimming Pool Filter with Center Hub Port Compatible with Anthony Apollo and Flowmaster welding It has improved flame sensingUnicel FG 2417 Single Rectangular DE Grid Replacement Swimming Pool Filter with Center Hub Port Compatible with Anthony Apollo and Flowmaster Replacement Grid Filter: Replacement FG 2417 DE grid features media with a high yarn count of fine denier fibers, which yield an optimal permeability to keep your water sparkling Optimal Performance: Grid cloth design allows for better DE caking properties and less resistance to water flow for optimal