Quartz Gravel, 3/16 X 3/32 Packaged in Half CF Bag
Brand: CEI Filtration
Mfg#: QUARTZ GRAVEL, 3/16 X 3/32 half CF Bag
NSF 61 Approved Support Gravel. One cubic foot packaged in 1/2 cubic foot bags.
Support gravel, the lower strata of a filter bed, acts to support other filter layers. NSF 61 Approved for use in potable water systems.