ProAqua PA-518 Hot Tub Filter Cartridge

SKU: PA-518

$45.99 $70.00


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ProAqua PA-518 Canadian Spa Hot Tub Filter | AP57560 | CD18 | KA-10032

The ProAqua PA-518 Hot Tub Filter Cartridge is a premium 50 sq. ft. replacement spa filter designed for select Canadian Spa Company hot tubs. It is a washable and reusable alternative to the original Canadian Spa filter and provides excellent water flow and filtration for clean, clear hot tub water.

The PA-518 is commonly used as a replacement for Canadian Spa Company AP57560 and CD18 filters and is also associated with KA-10032 and KA-10082 filter numbers.

Featuring durable pleated filtration media and a free-flow core, the ProAqua PA-518 helps capture dirt, debris, oils and other contaminants while maintaining proper water circulation through your spa filtration system.

This filter measures approximately 5-3/4" in diameter x 6-1/8" long, with a semi-circular handle on top and a 1-1/4" SAE threaded bottom connection.

Features

Premium ProAqua replacement hot tub filter cartridge

50 sq. ft. filtration area

Washable and reusable pleated filter media

Designed for select Canadian Spa Company hot tubs

Common replacement for Canadian Spa CD18 and AP57560 filters

Semi-circular top handle for easy removal

Threaded bottom connection

Free-flow core helps maintain proper water circulation

Suitable for many Canadian Spa Company models from 2014 and newer

Specifications

Brand: ProAqua

Part Number: PA-518

Application: Alpine / Canadian Spas 18

Filter Area: 50 sq. ft.

Diameter: 5-3/4"

Length: 6-1/8"

Top: Semi-Circular Handle

Bottom: 1-1/4" SAE Thread

Outside Diameter of Threads: Approximately 1-3/4"

Filter Type: Washable Pleated Hot Tub Filter Cartridge

Cross-Reference / Replacement Filter Numbers

PA-518

AP57560 / PA-AP57560

CD18 / OC-CD18

KA-10032

KA-10082

Canadian Spa Compatibility

The ProAqua PA-518 is commonly used with select 2014 and newer Canadian Spa Company hot tubs. Compatible applications reported for this filter include models such as Toronto, Winnipeg, Victoria, Vancouver, Thunder Bay, Calgary, Quebec, Ottawa, Niagara Falls, London, Kingston and other Canadian Spa models.

Model years and filter configurations can vary. For the most accurate replacement, compare the filter number, dimensions, handle and threaded connection with your existing cartridge before ordering.

Important Filter Sizing Information

Hot tub filters that look similar are not necessarily interchangeable. Before ordering, verify the 5-3/4" diameter, 6-1/8" length, semi-circular handle and 1-1/4" SAE threaded bottom connection against your existing filter.

FAQs

What filters does the ProAqua PA-518 replace?

The PA-518 is commonly used as a replacement for Canadian Spa Company AP57560 and CD18 filters and is also cross-referenced with KA-10032 and KA-10082.

Does the PA-518 fit Canadian Spa Company hot tubs?

Yes. The PA-518 is designed for select Canadian Spa Company hot tubs and is commonly used in models manufactured from approximately 2014 onward. Always compare your existing filter number and dimensions before ordering.

How large is the PA-518 filter?

The cartridge measures approximately 5-3/4" in diameter and 6-1/8" long, with a semi-circular handle and threaded bottom connection.

How much filtration area does the PA-518 have?

The PA-518 provides approximately 50 square feet of pleated filtration area.

Is the ProAqua PA-518 washable?

Yes. The standard PA-518 uses washable pleated filtration media and can be cleaned and reused as part of regular hot tub maintenance.

How often should I replace the PA-518?

Replacement frequency depends on hot tub use, water chemistry and how regularly the filter is cleaned. Inspect the cartridge regularly and replace it when the pleats become damaged, permanently discoloured, difficult to clean or when proper water flow cannot be restored after cleaning.