Industrial-Grade Filtration for Large Inground Pools

When your pool demands the best, the BLACK + DECKER 525 Inground Quad Cartridge Filter Tank delivers. Built with reinforced polymer materials and four oversized cartridges, this industrial-grade replacement tank for the BLACK+DECKER Q4 filtration system is engineered for large pools and high-flow systems that need maximum filtration capacity without compromise.

Built for High-Volume Pool Systems

• 525 sq. ft. filtration capacity — massive surface area handles high-flow systems and large pool volumes with ease
• 4 oversized cartridges — extended cleaning intervals and superior debris capture down to 10 microns
• Reinforced polymer construction — industrial-grade materials for maximum durability under high pressure and chemical exposure
• Compatible with BLACK+DECKER Q4 system — direct replacement tank for existing Q4 filtration setups
• No backwashing required — rinse cartridges to clean; saves water and preserves pool chemistry

Specifications

• Model: 525 (Quad Cartridge)
• Filtration: Down to 10 microns
• Cartridges: 4 oversized
• Construction: Reinforced polymer
• Pool Type: Inground
• Brand: BLACK + DECKER

Maximum performance: Pair with the BLACK + DECKER 2 HP or 3 HP variable speed pump for a fully matched, high-capacity pool system.