Aqua Pro 20x4.5 Big Blue Housing - Grey - Stainless Steel Ports

Aqua Pro 20″ x 4.5″ Grey Housing — 1″ BSP Stainless Steel Ports A heavy-duty 20″ x 4.5″ Big Blue style filter housing designed for high-flow filtration and longer cartridge life. This model features a durable grey housing with stainless steel 1″ BSP ports, making it a strong option for larger domestic, rural and light commercial water filtration setups. Why Choose This Housing? High-capacity 20″ x 4.5″ housing — suits Big Blue style cartridges for longer run time and higher dirt-holding capacity. Stainless steel 1″ BSP ports — strong, durable connection points for reliable plumbing. Grey housing design — a practical, professional-looking housing for larger filtration installations. High-flow capability — housing rated up to 160 litres per minute maximum flow without cartridge fitted. Australian certified — certified to AS3497:2021 in accordance with AS/NZS 3707. Flexible install options — bracket and spanner can be added depending on how you’re mounting and servicing. Specifications Housing Size 20″ x 4.5″ Cartridge Size 20″ x 4.5″ Big Blue style cartridges Ports 1″ BSP stainless steel ports Pressure Rating 0–620 kPa Temperature Rating 0.5°C – 37.8°C Maximum Flow 160 L/min* Initial Pressure Drop at Flow 10 kPa @ 57 L/min *Maximum flow measured without cartridge. Refer to the cartridge specifications for actual flow rates. What’s in the Box Aqua Pro 20″ x 4.5″ grey housing with 1″ BSP stainless steel ports Optional add-ons: stainless steel mounting bracket, housing spanner Installation & Care Notes Protect from direct sunlight — install in a shaded location or in a weather-protected enclosure. If adding the optional housing spanner, it makes cartridge changes and servicing much easier. Cartridge selection depends on your water and what you want to reduce, such as sediment, taste, odour, chlorine, chemicals or other contaminants. Actual system flow will depend on the cartridge fitted, incoming water pressure and plumbing setup. Warranty Covered by PSI warranty support for peace of mind. View warranty details. Need Help Choosing a Cartridge? If you’re unsure which cartridge suits your water and housing setup, check our guide here: Click here for selection advice