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How to identify your pool and spa filter cartridge?
If you already know your filter cartridge's part number, please search the part number on our product page to quickly confirm whether the filter is compatible.
If you do not know the part number for your cartridge, then choosing the right cartridge can be accomplished by measuring your existing one. Use the following steps as a guide:
- Measure the outside diameter of the cartridge.(±1mm).
- Measure the overall length of the cartridge in inches (± 1/16), including the end caps. Do not include any handles, strings, etc. A more accurate measurement is made by measuring through the center of the cartridge when possible.
- If the top and/or bottom is open, measure the inside diameter of the opening (±1mm). If the end cap is closed make note of its identifying features (i.e. 'Handle', etc.).
- Make note of the manufacturer (OEM) and model number of the filter into which the replacement cartridge will be installed.
- Take note whether or not there is a center core.Also count the number of pleats (±2).
Specifications of A35B:
- Length: 14"
- Outside Diameter: 6-3/8"
- Top Opening: 2"
- Bottom Opening: 2"
- Filtration Area: 35 sq.ft
Note: All manufacturers' names and part numbers remain the property of their respective holder(s) and are used for compatibility information only.
AMIBRON Replacement Filter for Pool and Spa Cleaning Systems
Replacement Part Numbers:
PWK35B, 1642301-1, 78161, 78286
This filter used in pools / spas made by:
Watkins Mfg. and hot spring Limelight series: pulse, flair, flash & beam
Higher Dirt-Holding
The powerful filtration function can remove residual Chlorine, odor and other impurities to keep your pool & spa water crystal clear.
Excellent Cleanability
Highly uniform media allows easy and thorough cleaning, it holds up to rigors of multiple cleanings.
Long Service Life
The filter can be used repeatedly after proper cleaning and maintenance, which increases the service life of the pool filter and saves money.
Melissa Loudermilk
Reviewed in the United States on February 12, 2025
Recently bought a hot springs spa and needed to change the filter, so we went to the local shop for the replacement. When they told me the price of one, I came on here and found the same price but for 2 so that was a no brainer! Don't waste your money at the shop when these are a perfect fit.
REP
Reviewed in the United States on March 12, 2024
Perfect replacement of OEM filters in our Hotsprings tub.
Felicia Hall
Reviewed in the United States on March 1, 2024
I did not realize how bad our hot tub needed new filters. We bought these and replaced them with our old ones. Our hot tub looks and smells brand new!
Robert Wetherille
Reviewed in the United States on December 9, 2024
I have bought many pool and spa filters online. These are top quality. Hope they work for a long time. Brand new, not cleaned yet.
Dennis
Reviewed in the United States on December 8, 2024
These work just like the OEM units. Fit fine and better price too. Easier to get these than a trip to dealer many miles away.
Bonnie
Reviewed in the United States on December 17, 2024
These filters clean up much better than other filters I have used. They are well made and do not feel flimsy like some other brands.
mariejered
Reviewed in the United States on October 7, 2024
Perfect just what I needed,function well,easy to clean,durable,fit good
Brendan W.
Reviewed in the United States on October 1, 2024
Watkins OEM parts seemed absurdly expensive for what they're made of, so I tried every trick in the book to extend the life of my old filters when our tub started throwing filter flow errors. Cleaning solutions, running them through the dishwasher, painstakingly wiping inside every crease. Finally found these for a fraction of the OEM price and I wish they'd come into my life sooner! They work great, and we haven't had a filter error since.
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