Poolzilla Spa Filter Cartridge Size VI (3.1 x 4.2 in) Replacement — Pleated, Rinse-Clean

Poolzilla Size VI spa filter cartridge replaces Bestway 29001E and Coleman SaluSpa cartridges to restore clear, flowing hot tub water.

When your inflatable spa’s pump begins to strain or the water looks cloudy, the easy fix is often a fresh filter. This Poolzilla replacement cartridge is manufactured to match the Size VI footprint used by Bestway Type VI, 29001E, Coleman SaluSpa models and several aftermarket brands. It provides reliable filtration, a long service life when cleaned regularly, and straightforward installation so you can get your spa back to clean circulation fast.

Will this cartridge fit my spa model?

Yes — this cartridge is designed to be compatible with common Size VI filter housings. Use the physical dimensions to confirm fit: 3.1 inches length, 4.2 inches outer diameter, and a 2-inch inner diameter. If your existing cartridge matches those measurements, it will seat correctly and allow proper pump flow.

• Compatible references: Bestway 29001E, Type VI, Sunset Filters VI, Volca Spares Size VI
• Coleman references: SaluSpa 90352E, 58323E, 58323, 58324
• Measure before buying: 3.1" (L) x 4.2" (OD) x 2" (ID)

How does this filter improve water clarity and pump performance?

The cartridge uses pleated filtration media to trap visible particles and fine debris that cause cloudiness. Cleaner water reduces strain on the pump and keeps circulation efficient, so the spa heats and filters more effectively. Routine rinsing extends media life and sustains flow rates throughout the season.

• Pleated fabric captures sand, silt, rust, and sediment
• Improves circulation by reducing clogging in the pump
• Rinse-cleanable design for repeated reuse

How long will this replacement cartridge last and how do I maintain it?

With proper care, expect a typical service life of about 1–2 years, depending on usage and water conditions. Rinse the cartridge every 1–2 weeks, soak in a filter-cleaning solution monthly if needed, and replace when pleats show persistent staining or damaged seams. Proper chemical balance in the spa also reduces premature clogging.

• Routine rinse with water after each week or heavy use
• Monthly soak in a suitable filter cleaner for deep cleaning
• Replace after visible damage, severe staining, or 1–2 years of wear

What should I expect during installation and service?

Installation is straightforward: shut off the pump, remove the old cartridge, insert the Poolzilla cartridge into the filter housing, and restart the pump. No special tools are required. If water flow isn’t restored, recheck fit and housing seals or inspect the pump for debris.

• Turn off power before handling the filter
• Slide cartridge into the housing aligned with the pump inlet
• Restart pump and verify steady flow and reduced cloudiness

Who is this for: Pool owners and renters with inflatable or portable spas that use Size VI filter cartridges — including Bestway and Coleman SaluSpa users — who want an affordable, durable replacement to keep water clear and pumps running efficiently. It’s ideal for seasonal maintenance, replacing worn filters, or keeping a backup cartridge on hand for busy spa weekends.