Description
EQUIPMENT
Black Diamond 425 Quad Cartridge Filter Tank For In-Ground Swimming Pools
425 Sq. Ft. Capacity Quad-Element Design High-Flow Hydraulics Island Recreational Exclusive
The Black Diamond 425 is a professional-grade hydraulic filtration system engineered with a 425 square foot quad-element design. This high-capacity tank significantly increases surface area to reduce backpressure while providing exceptional water clarity. It is purpose-built to handle high-flow demands of modern in-ground pool systems with maximum efficiency.
Why You'll Love It
Superior Surface Area — The 425 square foot filtration area allows for longer cycles between required cleanings.
Quad-Element Precision — Four high-density cartridges distribute water evenly to prevent clogging and optimize flow rates.
High-Flow Architecture — Internal plumbing is designed to minimize friction loss, ensuring your pump operates at peak hydraulic efficiency.
Durable Tank Housing — Constructed from corrosion-resistant materials engineered to withstand high pressure and variable weather conditions.
Best For
Large in-ground swimming pools requiring maximum filtration
Pools equipped with high-performance or variable speed pumps
Homeowners seeking extended service intervals between cleanings
New installations or high-efficiency equipment upgrades
Key Benefits
Ultra-Fine Particle Removal
Reduced Energy Consumption
High-Strength Resin Body
Heavy-Duty Filter Manifold
Optimized Hydraulic Balance
How to Use
Plumb the filter tank into the return line after the pump and before the heater/chlorinator.
Ensure all plumbing connections are secure and the tank lid is properly seated and locked.
Monitor the integrated pressure gauge during initial operation to establish a "clean" baseline.
Rinse the internal quad-elements when the pressure gauge increases 8-10 PSI above the baseline.
Quick Specs
TypeCartridge Filter
Pool TypeIn-Ground
CompatibilityChlorine & Salt
Service No Backwashing
PRO TIP
To maximize the lifespan of your cartridges, always use a filter cleaner solution during your seasonal deep-clean to remove oils and minerals that simple rinsing cannot reach.
Always follow manufacturer instructions and local codes. Professional installation may be recommended for certain equipment.
