Hayward CL220ABG Chlorinator Off Line for Above Ground Pools max flo sp2800x max rated (diatomaceous earth) for pool filters 8 year winter cover (diatomaceous earth) for pool filters Aladdin Part # Filbur Part # FC3029 Filter Bottom Configuration 1 1 2" MPT Filter Length 7 3 4" Filter Outer Diameter 4 3 8" Filter Top Configuration Closed Manufacturer Part # APCC7443 More Info OD = 4 3 8" Length = 7 3 4" Top = Closed Bottom = 1 1 2" MPT Notes Reflections Vita Pleatco Part # PVT25NP Square Feet 25 Unicel Part # The Hayward automatic chlorinators use large or small Tri Chlor slow dissolving tablets or sticks enough to supply three weeks of chlorine sanitation for above ground pools corrosion proof feeders designed for easy installation on new or existing pools or spas ranging up to a 9 lb