How do I know If this filter can fit my spa?

Hello Susan Bennett, thanks for your question, follow the steps to match your spa: 1) Check the compatible Codes. If you can't find your code, then measure the height, outer diameter and hole diameter, and compare with this filter. 2) Size of this filter: Width: 5" (12.5cm) Height: 13 5/16"(33.8cm) Top: Open 2 1/8" (5.4cm) Bottom: Open 2 1/8" (5.4cm) Sq Ft: 25 sq ft 4oz Media

do you take off the small band in the center before using?

No need to do that. It stays on to help maintain the filter media integrity.

Does this fit Candy bay 3 hot tub? Purchased from blue whale spa

Dear customer,Thanks for your question.Sorry, we couldn't find the product model you mentioned.Our measurements for this product are Filtering Area: 50 Sq. Feet; Length: 13 5/16"(33.8cm); Outside Diameter: 5"(12.5cm); Top Hole: 2 1/8"(5.4cm) Opening; bottom hole: 2 1/8" (5.4 cm) opening.You can compare the size of your old filter with the size of this product and confirm.If you have any questions, please feel free to contact us.

Will this fit Bluewhale spa standard filter?

Hi. I have a blue whale spa (princeton 100 jet) and these filters work fine. They are slightly bigger but they still fit, in fact, they no longer move around which makes them easier to put in. There are more fins than the original also. I am happy with them as a replacement. Hope this helps

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2PC PRB50-IN Spa Filter for Hot Tub, 12.73 × 33.8cm

2PC PRB50-IN Spa Filter for Hot Tub, 12.73 × 33.8cm

Product ID: 154533379

📏50 sq.ft filtration area, 33.8cm length

⚙️Durable ABS core & break-resistant end caps

🛡️IAPMO NSF/ANSI 50 certified safety

$122.90

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Description

💧 Elevate your spa game with pure, powerful filtration—because your hot tub deserves the best!

BUILT TO LAST - Reinforced with break-resistant end caps and a robust ABS inner core to withstand high pressure and chlorine corrosion.
FITS LIKE A GLOVE - Seamlessly replaces top models like Pleatco PRB50-IN and Unicel C-4950, ensuring hassle-free upgrades.
CERTIFIED SPA SAFETY - Tested and approved by IAPMO for eco-friendly, non-toxic filtration—because your wellness deserves the best.
SPA READY CLEANLINESS - Enjoy crystal-clear water and ultimate relaxation with a filter engineered for peak hot tub performance.
MASSIVE FILTRATION POWER - 50 sq.ft of advanced 'Dirt-Locking' fabric traps more contaminants—say goodbye to hair, leaves, and sediment.

The POOLPURE 2PC PRB50-IN Spa Filter is a high-performance replacement cartridge designed for hot tubs and spas. Measuring 12.7 × 33.8 cm with a 50 sq.ft filtration area, it features durable ABS construction and break-resistant end caps. Certified by IAPMO to meet NSF/ANSI 50 standards, it offers eco-friendly, safe filtration with innovative 'Dirt-Locking' fabric technology that efficiently captures contaminants like hair, leaves, and sediment. Compatible with multiple popular filter models, it ensures long-lasting, high-capacity chlorine resistance and superior water clarity for a premium spa experience.

Specifications

ASIN	B07TGG6HXP
Best Sellers Rank	5,301 in Garden ( See Top 100 in Garden ) 13 in Pool & Hot Tub Filter Cartridges
Customer Reviews	4.7 4.7 out of 5 stars (1,444)
Date First Available	30 July 2019
Item display height	13.7 centimetres
Item display length	35.6 centimetres
Item display width	26.6 centimetres
Item model number	50IN
Manufacturer	YUNDA
Material type	Abs
Package Dimensions	35.6 x 26.6 x 13.7 cm; 1.54 kg
Part number	50IN

Reviews

L**D

Filter

Great product value for money would recommend

13.08.2026

A**R

Does what you want it to do

Perfect for our hot tub

20.07.2026

A**R

As water filters go gets my rating

Does perfect job for a decent price

26.05.2026

M**R

Brilliant

Great product

12.06.2026

R**B

Good match to Blue Whaled Spar brand

Good match to my Blue Whale spa if you can’t get hold of their branded product It was also about a 3rd cheaper than brand

4.05.2023

A**R

Hot tub filter

Very good and a very good price. We have been using them for 2 weeks, so far so good. Fits our lue whale spa Victoria beach perfect

25.06.2025

G**Y

Work brilliantly

Package arrived quickly. Does the job

29.06.2026

N**.

Great product and service

Great service

27.01.2026

L**R

Très bonne qualité

Bonne matière solide très bonne qualité

26.07.2026

S**D

Excellent

Work well and last for as long as you take care of them.

22.12.2025

A**T

Gerne wieder

Alles Perfekt und extrem schnelle Lieferung

8.06.2026

C**N

Entrega rápida

Muy bien !! Y rápido👏

4.06.2025

G**S

Conforme

ok pour jacuzzi

3.03.2024

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$122.90

Duties & taxes included

In stock

Sold byAmazon USADelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

Buyer Protection · Full refund if your order doesn't arrive as described.

Desertcart purchases this item on your behalf and handles shipping, customs, and support to USA.

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TrustScore 4.5 | 7,300+ reviews

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The MOLLE sheath is of exceptional quality. Very happy with my purchase.

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The delivery time was excellent, and the packaging was secure.

2 months ago

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