Tier1 Jacuzzi 6540-723 Replacement Spa Filter Cartridge 2-Pack — 10-3/4" High-Flow Trilobal Media

Tier1 Replacement for Jacuzzi Spa 6540-723 Filter (2pk) is a pair of compatible spa cartridges engineered to restore filtration performance in Jacuzzi and equivalent spa systems.

This two-pack of Tier1 replacement cartridges is designed as a direct-fit alternative to Jacuzzi 6540-723 and several OEM equivalents. Built to the dimensions and flow characteristics required by many hot tub systems, these cartridges use trilobal fiber media and a high-flow internal core to trap debris while maintaining steady water circulation. Independently tested to NSF 50 protocols, they offer a balance of capture efficiency and durability so you can return your spa to clear, comfortable water.

Will this cartridge fit my Jacuzzi or equivalent spa?

Yes — the Tier1 replacement is sized and shaped to match the common Jacuzzi 6540-723 profile and multiple cross-reference part numbers. Measure your current cartridge against the listed dimensions to confirm fit before purchase.

• Exact cartridge size: 10-3/4" height x 5-3/16" diameter
• Compatible with Jacuzzi 6540-723 and cross-referenced models
• Also fits Pleatco PJW40SC-F2M, Filbur FC-2811, Unicel 5CH-402, and similar
• Sold as a convenient 2-pack for simultaneous replacement of two filters

How does the trilobal dirt-lock media improve filtration?

The trilobal fiber design presents a larger surface area and sharper capture points than round fibers, catching a wider range of particles without overly restricting flow. That means finer debris is held in the cartridge while water continues circulating efficiently through pumps and heaters.

• Trilobal fibers capture up to 40% more debris than standard round fibers
• Effective against hair, leaves, silt, and fine particulates
• Media structure balances capture with sustained water flow
• Helps reduce frequency of intensive cleaning cycles

Will these filters affect pump pressure or heater performance?

No — Tier1 cartridges include an internal high-flow core engineered to maintain steady circulation. The core prevents restrictive collapse and helps protect pump and heater operation by keeping head pressure within expected ranges for compatible systems.

• High-flow internal core ensures consistent water circulation
• Designed to avoid excessive backpressure on pumps
• Maintains heater-friendly flow for reliable temperature control
• Durable construction resists deformation under normal usage

What testing and durability can I expect?

Tier1 cartridges are independently tested to NSF 50 protocols for performance and durability parameters relevant to pool and spa filtration. Built materials and pleat structure are chosen to withstand repeated wet/dry cycles typical in residential spa use.

• Independently tested to NSF 50 standards
• Robust pleat spacing resists clogging and collapse
• Materials selected for repeated cleaning and handling
• Two-cartridge pack reduces downtime—replace both at once

Who is this for: The Tier1 Replacement for Jacuzzi Spa 6540-723 Filter (2pk) is for spa owners who need a reliable, economical replacement for worn or clogged cartridges that maintain pump and heater performance. It's ideal for people who prefer compatible aftermarket filters that meet common OEM dimensions and have independent performance testing, whether you maintain a private spa, manage a rental property, or service multiple hot tubs.