Watts Big-Bubba Depth Cartridge 20 Micron

The Watts Big-Bubba Depth Cartridge 20 Micron, model BBC-150-D20, offered by AMPAC USA, is a high-capacity, jumbo melt-blown polypropylene sediment filter built to fit Big Blue 4.5-inch x 20-inch filter housings. It removes suspended solids, sediment, sand, silt, and rust particles from water, acting as a first line of defense against contaminants that can degrade water quality and damage downstream equipment. Its 20-micron nominal rating captures particles as small as 20 micrometers, meaningfully reducing turbidity and improving water clarity.

• 20-micron nominal rating removes suspended solids, sediment, sand, silt, and rust
• Graded-density melt-blown polypropylene media for high dirt-holding capacity
• Fits Big Blue 4.5" x 20" filter housings
• Double O-ring seals ensure a leak-free fit in Big Bubba Hydrosafe housings
• Chemically resistant construction suited to a wide range of water conditions

This depth cartridge is built for demanding environments with high flow rates and heavy sediment loads. Its melt-blown polypropylene media has a graded-density structure — outer layers capture larger particles while inner layers trap progressively finer ones — which maximizes dirt-holding capacity, extends service life, and reduces how often the cartridge needs to be changed. Double O-ring seals ensure a secure, leak-free fit with all Big Bubba Hydrosafe filter housings, preventing bypass that would otherwise let unfiltered water circumvent the cartridge. The polypropylene construction also offers strong chemical resistance, so the cartridge performs reliably across a range of water conditions without degrading or leaching into the water stream.

Applications are wide-ranging. In whole-house systems, it serves as the recommended first-stage pre-filter, protecting plumbing fixtures, water heaters, and appliances from sediment buildup and abrasion. For commercial reverse osmosis pre-treatment, it's especially useful: RO membranes are highly susceptible to fouling by sediment, and removing larger particles upfront protects the membranes and extends intervals between cleaning or replacement. It's also a strong fit for high-turbidity well water and industrial water treatment — manufacturing, agriculture, and food processing all benefit from cleaner process water that protects sensitive equipment and improves product quality.

AMPAC USA manufactures the BBC-150-D20 with precision and high-grade materials for consistent, reliable filtration. Customers can expect superior sediment removal, protection for their water treatment systems, and dependable performance under challenging conditions.