Hydropool® Compatible 75 Sq Ft Filter Cartridge – OEM Fit – part #4520008

$55.95
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Hydropool® Compatible 75 Sq Ft Filter Cartridge – OEM Fit – part #4520008

Hydropool® Compatible 75 Sq Ft Filter Cartridge – OEM Fit – part #4520008

$55.95
Description
The Hydropool® part #4520008 compatible filter cartridge is a high-performance, one-piece 75 sq ft replacement designed for select Hydropool Self‑Cleaning hot tubs (e.g., 14AX, 16EX, 17AX, 19EX series from 2021‑2025). Built with durable pleated media and matching top/bottom openings, it installs easily and ensures crystal-clear water and optimal spa performance. Trusted by technicians and homeowners alike for its OEM-quality fit and long-lasting filtration.

Product Description

  • One-piece, no-core design filter cartridge offering 75 sq ft of pleated filtration media to trap sediment, oils, and particles as fine as 10 microns, ensuring clear, healthy spa water.

  • Compatible with Hydropool Self‑Cleaning models—AquaSport, AquaTrainer, Executive Sport/Trainer 16EX/19EX, and 19DTAX produced from 2021 to 2025.

  • Constructed with matching top and bottom ports sized at 2⅛″ (54 mm), simplifying installation without adapters or core assembly.

  • Compact yet powerful—measuring approximately 20⅛″ long with a 5″ diameter—to fit tight filter housings while maximizing water flow and capacity.

  • Durable spunbond polyester media resists high-temperature spa environments, chemical exposure, and repeated cleanings to provide extended service life.

  • No separate core to manage—just rinse weekly and deep clean monthly; replace every 12 months depending on usage to maintain peak performance.

  • OEM-level construction ensures optimal pump and heater protection by enhancing flow and blocking contaminants effectively.

  • Ideal for Hydropool spa owners and service techs seeking cost-effective, reliable filtration without sacrificing brand compatibility.

Product Specification

Brand Hydropool
SKU 4520008
Dimensions 5 x 5 x 10 in
Barcode 90164075204
Weight 0.66 lb

Product Compatibility

  • 2021 - 2025 Hydropool 14AX AquaSport
  • 2021 - 2025 Hydropool 14AX AquaTrainer
  • 2021 - 2025 Hydropool 16EX ExecutiveSport
  • 2021 - 2025 Hydropool 16EX ExecutiveTrainer
  • 2021 - 2025 Hydropool 17AX AquaSport
  • 2021 - 2025 Hydropool 17AX AquaTrainer
  • 2021 - 2025 Hydropool 19DTAX AquaSport
  • 2021 - 2025 Hydropool 19DTAX AquaTrainer
  • 2021 - 2025 Hydropool 19EX ExecutiveSport
  • 2021 - 2025 Hydropool 19EX ExecutiveTrainer

Filter Dimensions

Diameter 4.9375
Length 20.125"
Hole Size 2.125
Sq. Ft 75
Replacement(s) 17501, APCC7221, AK-3051, 25390, 40751, XLS-409, FC-2395, FC-2395M, 17-175-1600, RA75, R173435, 17-2632, RTL-75, V-DSC-75, RTL-75, RCF-75, PRB75, PRB75-M, PDC100-AFS, PC-2395, SD-01226, 817-7500

FAQ

Q: Which Hydropool models use this filter cartridge?

A: Compatible with Self‑Cleaning series including AquaSport, AquaTrainer (14‑19 AX), Executive Sport/Trainer (16EX/19EX), and 19DTAX models from 2021–2025.

Q: How often does it need to be replaced?

A: Filter media should be rinsed weekly; deep clean monthly, and replace annually or when flow decreases.

Q: Does this filter have a removable inner core?

A: No—the filter is one solid piece (no separate core).

Q: Are there aftermarket replacements?

A: Yes, equivalents include FC‑2395, C‑4975, PRB75, and RTL‑75, but this OEM-compatible cartridge ensures the best fit.

Q: Will it work with St. Cyr antimicrobial filter models?

A: Yes—St. Cyr’s 75 sq ft antimicrobial filter is a direct replacement for part #4520008.

Directions

Power off spa and open the filter housing.

Remove the used cartridge and rinse interior if needed.

Rinse the replacement cartridge thoroughly to remove loose media fibers.

Insert the new cartridge, aligning the 2⅛″ openings correctly.

Close housing, restore power, and verify proper water flow.

Customer Reviews

Based on 167 reviews
55%
(92)
45%
(75)
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E
Elliot H.
Good value

Excellent experience from ordering to installation. I’ll definitely be back.

E
Elliot H.
Works perfectly

Really impressed by how fast it arrived. Works just like it should.

C
Chris N.
Works perfectly

I had no trouble replacing the old part. Great product and even better support.

L
Leslie W.
Solid product

Can’t believe I didn’t replace this sooner. Total game-changer for my spa.

S
Skylar K.
Solid product

It’s been a few weeks and everything still runs smoothly. Great value.

123

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