---
product_id: 105387837
title: "Standard Filter for Blue Whale spa - Fits Many Hot Tub Models | Fits Many Hot Tub Models"
brand: "castle hot tubs"
price: "¥14261"
currency: JPY
in_stock: true
reviews_count: 8
category: "Castle Hot Tubs"
url: https://www.desertcart.jp/products/105387837-standard-filter-for-blue-whale-spa-fits-many-hot-tub
store_origin: JP
region: Japan
---

# Optimizes water clarity Fits 20+ hot tub models 13.3 inch filter length Standard Filter for Blue Whale spa - Fits Many Hot Tub Models | Fits Many Hot Tub Models

**Brand:** castle hot tubs
**Price:** ¥14261
**Availability:** ✅ In Stock

## Summary

> 💧 Elevate your spa game with crystal-clear confidence!

## Quick Answers

- **What is this?** Standard Filter for Blue Whale spa - Fits Many Hot Tub Models | Fits Many Hot Tub Models by castle hot tubs
- **How much does it cost?** ¥14261 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.jp](https://www.desertcart.jp/products/105387837-standard-filter-for-blue-whale-spa-fits-many-hot-tub)

## Best For

- castle hot tubs enthusiasts

## Why This Product

- Trusted castle hot tubs brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Hygienic Assurance:** Comes with a protective wrapper ensuring freshness and eligibility for easy returns.
- • **Premium Filtration:** Crystal-clear water guaranteed with top-quality Castle Hot Tubs filtration technology.
- • **Precision Dimensions:** Engineered with a 4.9" diameter and 13.3" length for a perfect, leak-free fit every time.
- • **Trusted by Enthusiasts:** Highly rated by spa owners and boating pros for noticeably cleaner, clearer water.
- • **Universal Compatibility:** Seamlessly fits over 20 popular Blue Whale spa models for hassle-free replacements.

## Overview

This Standard Filter by Castle Hot Tubs is designed to fit a wide range of Blue Whale spa models, featuring precise dimensions (4.9" diameter, 13.3" length) to ensure a perfect fit. Crafted from premium crystal material, it delivers superior water filtration, backed by a 4.6-star rating from over 360 customers. The hygienic wrapper protects freshness and supports hassle-free returns, making it the go-to choice for spa owners seeking reliable, high-performance filtration.

## Description

This Filter should fit: Albany Crescent Bay/ Crescent Bay Deluxe/Crescent Bay Deluxe II Crystal Cove Daytona Del Rey X / Del Rey X Premier Hermosa II Longbeach Malibu Laguna Monterey San Diego Newport Oceanside Pacifica Riviera San Dimas San Luis Santa Ana Santa Cruz / Santa Cruz II / Santa Cruz III Solana Surfside Ventura / Ventura II/ Ventura III / Ventura IV Please thoroughly check the dimensions included in the listing of any filters you intend on purchasing, any recommendations we make are purely suggestions and should not be taken as a guarantee. Once you receive your filters, please do not remove the protective hygienic wrapper until you are sure that they are the correct fit for your spa. The hygienic wrapper must be completely intact for us to be able to process a refund for you should the filter not fit.

Review: My new preferred Filtering Unit - A filtration device of such high quality that I was shocked. Many of my friends in and around the boating world have commented how clear and clean the water now is. Many thanks Blue Whale - Michelle.
Review: Great product. - Great product bought these to replace the ones I already had that were getting a bit grubby. Good replacement fitted well and lovely and clean and new, came as a two pack so can swap them over when need to. Fitted my Blue Whale Spa hot tub perfectly would recommend and thought they were a good price too.

## Features

- This filter fits many hot tubs and spas, see list below.
- Outside Diameter 4 15/16" (12.5cm)
- Hole Diameter 2 1/8" (5.4cm)
- Filter Body Length 13 5/16" (33.8cm)
- Top Quality Product from Castle Hot Tubs

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B07KQC8WRM |
| Best Sellers Rank | 10,558 in Garden ( See Top 100 in Garden ) 26 in Pool & Hot Tub Filter Cartridges |
| Customer Reviews | 4.6 4.6 out of 5 stars (365) |
| Date First Available | 20 Nov. 2018 |
| Manufacturer | Darlly |
| Manufacturer reference | COMOYA |
| Material type | Crystal |
| Package Dimensions | 34.1 x 12.5 x 12.5 cm; 670 g |
| Part number | COMOYA |

## Images

![Standard Filter for Blue Whale spa - Fits Many Hot Tub Models | Fits Many Hot Tub Models - Image 1](https://m.media-amazon.com/images/I/71g1BHzZY4L.jpg)

## Questions & Answers

**Q: Does this filter have a female connection**
A: No

**Q: Will this fit the rockaway beach model ?**
A: Not sure but it’s a standard hot tub filter

**Q: How many filters in the pack**
A: Just one 'standard filter'.

**Q: Does this fit a Gecko hottub?**
A: No idea but they seem pretty universal

## Customer Reviews

### ⭐⭐⭐⭐⭐ My new preferred Filtering Unit
*by P***N on 1 January 2026*

A filtration device of such high quality that I was shocked. Many of my friends in and around the boating world have commented how clear and clean the water now is. Many thanks Blue Whale - Michelle.

### ⭐⭐⭐⭐⭐ Great product.
*by T***H on 27 August 2024*

Great product bought these to replace the ones I already had that were getting a bit grubby. Good replacement fitted well and lovely and clean and new, came as a two pack so can swap them over when need to. Fitted my Blue Whale Spa hot tub perfectly would recommend and thought they were a good price too.

### ⭐⭐⭐⭐⭐ hot tub
*by A***R on 16 April 2026*

very cheap compared to others

## Frequently Bought Together

- Standard Filter for Blue Whale spa - Fits Many Hot Tub Models
- Clearwater PH Plus Increaser for Swimming Pool and Spa Treatment

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*Product available on Desertcart Japan*
*Store origin: JP*
*Last updated: 2026-07-31*