Are these filters washable?

Hello, Yes they are washable. We suggest to rinse your hot tub filters with clean water every week, this will help remove debris and protect your filter material. under regular washings, hot tub filters will work more efficiently and last longer.

This is the same dimension as my oem filter, but why my oem filter listed at 50 sq.ft, while this filter is listed at 25 sq.ft?

Hello edward m, PLFPRB50-IN is 50 sq.ft. , while PLFPRB25-IN is 25 sq.ft. Both filters are in the same size. For PLFPRB50-IN, please refer to this link: https://www.amazon.com/dp/B07MTDB8KB, thank you!

Is this replacement filter compatible with rainbow dynamic rtl-rcf 25qf?

Yes, PLFPRB25-IN will replace Rainbow Dynamic 25. To make sure it fits your spa, we suggest to measure your old filter then compare with the specification. A slightly variance is acceptable. The filter size: Width: 5" Height: 13 5/16" Top: Open 2 1/8" Bottom: Open 2 1/8" Sq Ft: 25 sq ft

will this work on a sundance optima 850?

Dear customer, Thank you for your question, The filter you asked DOES NOT fit sundance optima 850.

Poolpure Prb25 In Hot Tub Filter Replace Unicel C 4326

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Sold byAmazon IcelandDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

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Description

💧 Dive into crystal clarity with PoolPure – where performance meets perfection!

BUILT TO LAST - Heavy-duty polyester and reinforced core extend filter life by 30%, saving you money.
TRUSTED BY CHAMPIONS - Used by Olympic athletes and media-tested for peak performance in demanding aquatic environments.
EFFORTLESS MAINTENANCE - Patented dirt-locking tech makes rinsing quick and thorough—less hassle, more swim time.
ELITE FILTRATION POWER - Trilobal fabric triples dirt adsorption for crystal-clear water all day.
ULTRA FINE 50 MICRON FILTER - Captures 99% of fine particles like hair, dust, and leaves to keep your spa pristine.

The POOLPURE PRB25-IN Hot Tub Filter offers a 13.3-inch length and 25 sq.ft trilobal filtration fabric that delivers superior dirt capture and water clarity. Certified NSF/ANSI 50 for safety, it features patented dirt-locking technology for easy cleaning and a durable design that lasts 30% longer than standard filters. Trusted by Olympic athletes and backed by industry standards, this filter ensures your pool or spa stays sparkling clean with less maintenance.

Specifications

ASIN	B07MTBTZSV
Best Sellers Rank	#7,796 in Patio, Lawn & Garden ( See Top 100 in Patio, Lawn & Garden ) #15 in Pool Filter Cartridges
Customer Reviews	4.7 4.7 out of 5 stars (1,483)
Item Weight	1 pounds
Item model number	PLFPRB25-IN
Manufacturer	POOLPURE
Product Dimensions	5 x 5 x 13.4 inches

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