Cartridge Filters

What Size of Cartridge Filter Do I Need?

Pool Size	Litres	Gallons	Minimum Filter Size
15' Round	20,000	5,300	150 SQ FT
18' Round	28,800	7,600	150 - 200 SQ FT
21' Round	39,200	10,400	150 - 200 SQ FT
24' Round	51,200	13,500	150 - 200 SQ FT
27' Round	64,900	17,100	150 - 300 SQ FT
30' Round	80,100	21,200	150 - 400 SQ FT

Pool Size-Inground	Litres	Gallons	Minimum Filter Size
12' x 18'	24,500	6,500	150 - 200 SQ FT
12' x 24'	32,600	8,600	200 SQ FT
14' x 28'	44,400	11,700	300 SQ FT
16' x 32'	58,000	15,300	400 SQ FT
18' x 36'	73,400	19,400	400 SQ FT
20' x 40'	90,600	23,900	500 SQ FT

Note: All figures above are approximate and based on averages generated with a constant depth of 48 inches. Use only as a guideline, actual manufacturer specifications may differ; refer to individual product details and documentation prior to purchasing.