Waterdrop Replacement for Pleatco PA90 Pool Spa Filter Cartridges

Regular price $95.99
Sale price $95.99 Regular price
2 Pack - $95.99 ($47.99 each)
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  • Key Feature
    • The advanced pleated technique offers an enlarged filtration area to reduce large particles, sand, sediments, leaves, and hair from the water.
    • The PET material used in this pool and spa filter makes it washable and reusable. Expect 1-2 years of active use.
    • The materials used in this swimming pool filter are BPA-free and lead-free, ensuring the safety and smooth running of your body system.
    • Please note this is a compatible spare part and the manufacturers' names and part numbers have been used for reference purposes only. Waterdrop is an independent brand.
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Shipping policy

Shipping rates and delivery estimates

Shipping Method

Estimated Delivery Time


Economy Shipping

4-10 Business Days


Standard Shipping

3-6 Business Days

$5.99(Free on order over $200)

Express Shipping

2-5 Business Days


* Shipping charges for your order will be calculated and displayed at checkout.

* The Delivery Time is calculated based on the shipping date, not the order date. The actual shipping date can be delayed due to invalid shipping address, weekends/holidays, etc.

Handling Time:

We need 24h to 48h to prepare your order, most of the packages will be shipped out within 24 hours except weekends and holidays.

Track your order

Once your order is shipped, you will receive an email from us containing the tracking information. Tracking information is also available in your "Order Details" page.

Shipping areas

The products can be delivered to the most of states in United States except American Samoa, Micronesia, Guam, Marshall Islands, Northern Mariana Islands, Palau, Puerto Rico and U.S. Virgin Islands.

International shipping

We are sorry that the international shipping service is not supported for the time being.

Shipping Carriers

We work with 4 carriers to make sure your order will arrive on time: UPS, USPS, FedEx and Amazon Logistics US.

Delivery Time Exceeded

Shipping might experience delay due to covid-19. If your order is delayed, please contact us via email service@waterdropfilter.com, we will check the situation with the transportation company in time. Thanks for your understanding and support.

Note: We don't accept requests to specify a certain carrier to deliver the package.

Shipping origin

The package will be shipped from one of our US warehouses closest to your location.

* If you have any questions, you can contact our customer via LiveChat or email to service@waterdropfilter.com, we will reply to you as soon as possible!

Sales Tax

The sales tax will be collected in accordance with U.S. tax laws. Customers whose delivery address within the following states will be charged a certain tax at checkout, and the tax rate is determined by the local government. (AZ, CA, CO, FL, GA, IL, IN, KY, MA, MD, MI, MN, NC, NJ, NV, NY, OH, PA, TX, UT, VA, WA, WI) All taxes collected will be reported and filed to the IRS on time.

30-Day Return ×
No Worries Guarantee

Thanks for shopping at Waterdrop. We appreciate the fact that you like to buy the stuff we build. We also want to make sure you have a rewarding experience while you're exploring, evaluating, and purchasing our products.


If you wish to cancel an order, please contact our customer service team

If you contact us within 24 hours of purchase:

We can cancel the order for you at no additional cost. The cancellation may take up to 3 days, thank you for your patience and understanding.

If the package is already shipped, we will issue a prepaid label and return your payment after we have received the package from you.

If you contact us after 24 hours of purchase:

You need to bear the return fee if the package is already shipped (depends on our system, not the order status).

The product has to be damage-free, packed in the packaging we sent to you, and with the original receipt of the purchase.

We will return your payment after we have received the package from you.

There are times when we may not have the product(s) that you choose in-stock or may face some issues with our inventory and quality check. In such cases, we may have to cancel your order. You will be intimated about it in advance so that you do not have to worry unnecessarily about your order.

Return Policy

We accept return reasons including defective, no longer needed, change mind, not as described, etc.

If you want to return the item without any quality issue, you need to bear the return fee yourself and pay 20% of the original order as a restocking fee. We will cover the return postage for return requests regarding quality issue.

Once you received a damaged / incorrect item and you want to file a claim, please email


together with your order information and the picture of the damaged / incorrect product. We are eager to help.

If you would like to return a product, please follow the next guidelines:

Step 1: contact the customer service team before return a product, we will reply you with return tips within 24 hours.

How to contact:

Email: service@waterdropfilter.com

Toll-free Tel: (888)-352-3558

Step 2: prepare package after you get confirmation from customer service team, please be noted the following requirements:

• The order number needs to be included in the package. You can print out the order detail page or leave a note in the package.

• The package needs to come back with the original receipt of the purchase.

• The product has to be in the packaging we sent in the first place.

• The product has to be damage-free (not applicable for defective products), damage on the product will void the refund.

Step 3: Please contact our customer service and send your return tracking number. We will track the package, and refund your money within 5 working days after we receive and check the package .

Return Window

We offer a 30-day return guarantee. Warranty will begin from the date the product is received. If a product grows defective during the warranty period due to a quality issue rather than your own breakage or misuse, we can accept a return, provide free repair service, or issue a new replacement.

Return address:

Ecolife Technologies, Inc.

17910 Ajax Circle

City of Industry, CA 91748

United States

Tel: 888-352-3558

Refund Policy

After receiving your request or your packages, it may take up 1-7 business days to refund your money. (Unfortunately, due to current situations and the COVID-19, your refund may require an additional 3-5 days to process. Thank you for your patience and understanding.)

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17 3/8”
Outside Diameter
8 15/16”
Top & Bottom Opening
Filtration Area
90 sq. ft.

How often should you replace spa filters?

There is no official answer to this as the filter lifespan might depend on various factors including the source water quality, use time and personal maintenance. Generally speaking, the pool & spa filter can last 1-2 years.

If I don’t change my filter in time, can this damage the system?

It is essential to replace your filter in time. But the accurate time may vary, depending on the filter’s performance or the degree of filtration it has been subjected to. Leaving your filters unchanged will lead to fatigue and adversely affect the filtration process.

Can you run a spa without a filter?

It’s not suggested to do so. Running the pump in a spa for too long without a filter can lead to clogged pump impellers and a fast decline in the water quality. So if you need a new filter, replace it as soon as possible. And in the meantime, only run the pump on low speed instead of turning it off.

What size filter do I need for my hot tub?

You can find the filter model number normally printed on the filter cartridge. If there’s nothing printed on your filter, you will need to pull out a measuring tape or a ruler. You’ll need to gather a few measurements from your current filter, and try to be as accurate as possible. Do not include any handles, tapers, pinholes, or slots in your measurements.

How to clean a spa and pool replacement filter?

Follow the instruction of your pool filter to remove the filter cartridge.
Use a spray nozzle on your garden hose and spray at an angle to get between the pleats. Do not use a pressure washer; it will damage the filter cartridge.
If the pool and spa filter is hard to be cleaned, soak it in filter cleaner overnight. Make sure the cartridges are completely submerged in the water and cleaner mixture.
Check the filter tank O-ring on the filter tank. If it’s in good shape, lightly apply some lubricant to keep it that way. If it’s dry-rotted, deformed, stretched, or appears worn out, you need to replace it.
Rinse the pool & spa filter replacement cartridges thoroughly.
Put the filter cartridge back and secure them in place.
Compatible Models
Pleatco PA90, CX900RE, C900, Hayward CX900RE, C900, C9002, PA90, Unicel C-8409, Filbur FC-1292, Clearwater II Pro Clean 100, Sta-Rite Posi Clear PXC-95, 817-0100P, 25230-0095S, Aladdin 19002/19002SVP.
Product Parameters
Length – 17 3/8”; Outside Diameter – 8 15/16”; Top and Bottom Opening – 4”; Filtration Area – 90 sq. ft.You can compare these with the specifications of your original filter before purchase.
Advanced Pleated Technique
The pleated technique offers an enlarged filtration area, which means this water filter for pool can efficiently remove large particles, sand, sediments, leaves, and hair from the water.
Durable and Washable
The PET material used in this pool filter makes it washable and reusable. You can expect 1 to 2 years of active use without any worries.
High-quality Materials
The materials used in this spa and pool replacement filter are BPA-free and lead-free, ensuring the safety and smooth running of your body system.