Pentair EC90 Filter Element Retro Kit YGroup_3m-depth-markers This plastic depth marker tile

This plastic depth marker tile states 4 IN

This No Jumping With Graphic aluminum sign measures 12 x 18 inches

with 21 inch filter tanks

It is used to test DPD Cl and Phenol Red pH

Anthony 04380

Pentair EC90 Filter Element Retro Kit YGroup_3m-depth-markers This plastic depth marker tileThis is a Pentair replacement Element Retro Kit for Easyclean EC90 D. E Filter Systems. This kit is required when replacing filters on models manufactured prior to 2014. This kit includes 178616 Compression Spring, 190106 Air Bleeder, 178626 EC Center Core Top, U37 3 8P EC90 Air Bleeder Tube, 178656 EC90 Cartridge Element, 178627 EC Center Core Bottom, and 071422 Center Core O Ring.