Regular Specification	Area (cm2)	Filtration Capacity Grey Iron-kgs	Filtration Capacity Ductile Iron-kgs	Pore Size (ppi)
Filtration capacity(kg/cm2)		4	1.5	10, 20, 30
40x40x22	16	64	24	10, 20, 30
50x50x22	25	100	38	10, 20, 30
50x75x22	37.5	150	56	10, 20, 30
50x100x22	50	200	75	10, 20, 30
60x60x22	36	144	54	10, 20, 30
75x75x22	56.25	225	84	10, 20, 30
75x100x22	75	300	113	10, 20, 30
100x100x22	100	400	150	10, 20, 30
D40x22	12.56	50	19	10, 20, 30
D50x22	19.625	78	29	10, 20, 30
D60x22	28.26	113	42	10, 20, 30
D70x22	38.465	154	58	10, 20, 30
D90x22	63.585	254	95	10, 20, 30
D100x22	78.5	314	118	10, 20, 30