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	200 SQ FT
21' Round	39,200	10,400	200 SQ FT
24' Round	51,200	13,500	200 SQ FT
27' Round	64,900	17,100	300 SQ FT
30' Round	80,100	21,200	400 SQ FT

Pool Size	Litres	Gallons	Minimum Filter Size
12' x 18'	24,500	6,500	150 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.