30BB10, Nelsen Dirt Cart, 9-3/4 30 Mic, Big Blue, 30BB10

These cartridges are manufactured from a durable polypropylene cord that is wound around a rigid polypropylene core. Ideal for fine sediment removal including sand, silt, scale, unseen sludge and rust particles. Compatible with most acids, alkalis, corrosive fluids and gases. An ideal, yet inexpensive choice for agricultural, photographic and residential applications.