POOLPURE Replacement for Spa Filter PRB17.5SF-Pair PRB17.5SF Unicel C-4401 Filbur FC-2386 Aladdin 11802 817-3510 6000-134 R173432 17-2606 Dynamic Series IV DSF 35 Hot Tub Filter


2 Pack

Max: 30
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🌊【Compatible Models】 PLFPRB17.5SF-PAIR Spa Filter compatible PRB17.5SF-PAIR, Unicel C-4401RA, SD-00199, Canada M40352, 3005820, FL1006, 17-175-1610, 4902-107.*

🌊【100% Money-Back Guarantee】6-Months Return Policy Guaranteed! 12 Months Service Life!**

🌊【Powerful Filtration Performance】 Innovated "Dirt-Locking" technology makes efficiently removes hair, leaves, dust, sediment, sand, etc.

🌊【Long Service Life】 Unique Trilobal Filtration Fabric Structure make it easier to wash/clean to recondition the filter. 


*NOTE: All trademark remain the property of their respective holder(s) and are used for compatibility information only. POOLPURE is an independent brand.   

**Product Life Time Warranty on Every Filter Confirmed With Defects in Material and Workmanship Within Each Filter's 12 Months Service Life!

Product details


    ✨Top Quality Material

    Poolpure only uses Lead-free and BPA free materials. Assure you of safe and no-worry happy times.


    ✨High Chlorine Resistance End Cap

    Reinforced end caps are break resistant and are highly resistant to chemicals commonly found in pool and spa applications.


  • PRB17.5SF Unicel C-4401

    Specifications of PLFPRB17.5SF-PAIR:

    • Length: 4 5/8”

    • Outside Diameter: 5”

    • Top Opening: 2 1/8"

    • Bottom Opening: 2 1/8"

    • Filtration Area: 35 sq. ft.

    • Core: PVC Core

    • Package Quantity: 2 Filters

Measurements & Compatible



    Package Dimensions    9.84 x 5.39 x 5.35 inches

    Item Weight    1.5 pounds

  • POOLPURE Replacement Filter for Pool and Spa Cleaning Systems

    Replacement Part Numbers:

    PRB17.5SF/PRB17.5SF-PAIR | Darlly SC726 / 40352 | Unicel C-4401 | Filbur FC-2386 | Waterway 817-3510 | Sundance Spas 6000-134 | Aladdin 11802 | SD-00199 | Canada M40352 | R173432 | R172606 | 17-2606 | Master Deluxe M40352 | 3005820 | 17-175-1610 | 4902-107 | Dynamic Series IV - Model DSF 35

    Used in pools / spas made by:

    After Hours Spas | Apollo Spas | Aqua Tech Spas | Arizona Pacific | Beachcomber | Caribbean Spas | Catalina | Clearwater Spas | Diamond Back Spas | Discovery Spas | Dynasty Spas | Esther Williams | Freedom Spas | Grecian Spas | Hydro Spa | Legend Spas | Lifestyle Spas | Maax Spas (Canada) | Pdc Spas | Pentair Pool Products | Rainbow Plastics | Royal Spas | Sundance Spas | Waterway Plastics and other manufacturers


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PoolPure FC-2812 Spa Filter Replacement for Sundance 6540-502 Series 850 780, Filbur FC-2812 PSD25-6, Darlly PP2002 Hot Tub Filter Cartridge

🌍At Poolpure, we focus on bringing quality new products and technologies to the market, truly providing the cleanest water filtration for every pool and spa owner to ensure health, safety and happiness.

🌍Our commitment to science and engineering defines us as innovators and leaders. Our greatest asset is our true collaboration team. We strive to be smart, accurate, and highly consistent. The combination of discipline and creativity gives us the power and flexibility to consistently break new boundaries and take the lead in the game. Our common goal throughout the company is to “continually improve” every day.

🌍Our focus on superior customer service and support and the relationships we build are key to our success. We work hard every day with enthusiasm and commitment. We care about our customers and communities and take our responsibility seriously.

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How to find a replacement cartridge for your pool or spa?

How to find a replacement cartridge for your pool or spa?

If you already know your filter cartridge's part number or the replacement number, you can use the search the part number on our product page to quickly confirm whether the filter is compatible.

If you do not know the replacement 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:

1. Measure the outside diameter of the cartridge in inches (+/- 1/16).

2. Measure cartridge length from end cap to end cap (+/- 1/16). Exclude any handles or extensions.

3. Identify the correct top and bottom type. If the top and/or bottom is open, measure the inside diameter of the opening (+/- 1/16th inch). If the end cap is closed make note of its identifying features (i.e. “Handle”, “Cone”, etc.).

4. Make note of the manufacturer and model number of the filter into which the replacement cartridge will be installed.

5.Take note whether or not there is a center core (PVC pipe in center).