The Watts Big-Bubba Depth Cartridge 5 Micron (BBC-150-D5) from AMPAC USA is a high-capacity jumbo melt-blown polypropylene sediment filter for Big Blue 4.5-inch x 20-inch filter housings used in whole-house, commercial, and industrial pre-filtration systems. Melt-blown polypropylene construction provides reliable depth filtration without chemical leaching or media migration, suitable for potable water and food-grade applications.
Specifications:
- Micron rating: 5 microns nominal
- Format: Big Bubba / Big Blue jumbo (4.5" x 20")
- Double O-ring seals for reliable housing engagement
- Fits all Big Bubba Hydrosafe filter housings
- Media: Melt-blown polypropylene
The 5-micron rating is the most commonly specified pre-filtration stage for whole-house RO systems and commercial water treatment handling moderate to high turbidity feed water. Depth filtration throughout the cartridge body provides high dirt-holding capacity suitable for well water, surface water, and turbid municipal supplies.
See also: BBC-150-D20 (20 micron) for coarser pre-filtration. Replace when pressure drop exceeds 10 PSI or every 3–6 months. Contact AMPAC USA at (909) 548-4900.
Also available in Watts Big-Bubba BBC-150 Series:
Depth 1 µm (D1) Depth 5 µm Depth 20 µm Depth 50 µm (D50) Pleated 1 µm Absolute (P1A) Pleated 1 µm (P1) Pleated 5 µm (P5) Pleated 20 µm (P20) Pleated 50 µm (P50) Pleated 150 µm Mesh (PPM150) Activated Carbon (AC)
At AMPAC USA, we take pride in delivering not just industry-leading water purification solutions but also unmatched technical support to ensure seamless operation and customer satisfaction. Our dedicated support team comprises highly trained professionals who bring together deep engineering expertise and a commitment to exceptional service. Whether you require troubleshooting assistance, product guidance, installation support, or maintenance recommendations, our team is here to help.
How We Support You:
✔ Expert Consultation – Need help selecting the right reverse osmosis system, desalination unit, or water treatment solution? Our specialists will guide you based on your unique requirements.
✔ 24/7 Technical Assistance – We understand the urgency of water purification needs. Our support team is readily available to resolve issues and keep your operations running smoothly.
✔ Installation & Setup Guidance – Whether it’s a commercial, industrial, or residential system, we provide step-by-step assistance to ensure optimal installation and efficiency.
✔ Troubleshooting & Repairs – Facing operational issues? Our experts will diagnose problems quickly and recommend the best solutions, including spare parts, system optimizations, and repairs.
✔ Preventive Maintenance Support – Extend the lifespan of your equipment with routine maintenance guidelines and service schedules tailored to your system.
Phone: 909-548-4900 | Email: info@ampac1.com


