---
product_id: 420993596
title: "3-1/2\" Filter Replacement Cap Compatible with Watkins Hot Springs Hot Tubs Filter Standpipe(1, White)"
brand: "hotubjoy"
price: "¥9154"
currency: JPY
in_stock: true
url: https://www.desertcart.jp/products/420993596-3-1-2-filter-replacement-cap-compatible-with-watkins-hot
store_origin: JP
region: Japan
---

# Universal 3.5" screw-on fit Prevents debris & floatation Secures filter vertically 3-1/2" Filter Replacement Cap Compatible with Watkins Hot Springs Hot Tubs Filter Standpipe(1, White)

**Brand:** hotubjoy
**Price:** ¥9154
**Availability:** ✅ In Stock

## Summary

> 🔧 Lock in Clean, Lock Out Worries!

## Quick Answers

- **What is this?** 3-1/2" Filter Replacement Cap Compatible with Watkins Hot Springs Hot Tubs Filter Standpipe(1, White) by hotubjoy
- **How much does it cost?** ¥9154 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/420993596-3-1-2-filter-replacement-cap-compatible-with-watkins-hot)

## Best For

- hotubjoy enthusiasts

## Why This Product

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

## Key Features

- • **Sleek & Durable Design:** Crisp white finish complements your spa’s aesthetic while withstanding spa conditions.
- • **Effortless Installation:** Lightweight 50g cap installs quickly without tools, so you can get back to relaxing faster.
- • **Protect Your Investment:** Prevents floating filters and blocks debris from entering pumps and heaters, extending spa longevity.
- • **Secure Your Spa’s Heart:** Screws firmly onto the standpipe to lock your filter in place, ensuring optimal water flow and filtration.
- • **Precision Fit for Hot Spring Spas:** Engineered to perfectly fit all Hot Spring models including Highlife, Hot Spot, Tiger River, Limelight, and Caldera.

## Overview

This 3-1/2" white replacement cap is a must-have accessory for Hot Spring hot tubs, designed to securely fasten the filter standpipe and prevent floating or debris intrusion. Compatible across all major Hot Spring spa models, it ensures your filtration system operates efficiently while protecting your pumps and heater from damage.

## Description

3-1/2" Filter Replacement Cap Compatible with Watkins Hot Springs Hot Tubs Filter Standpipe(1, White)

## Features

- White replacement cap for the white filter standpipe on Hot Spring Spas.
- The standpipe cap secures the hot springs spas filter in a vertical position.
- This filter cap screws onto the top of the filter standpipe,in order to hold the filter in place on Hot Spring hot tubs.
- Lock your filter down to prevent it floating and to stop items from flowing down the top of the standpipe into your pumps/heater.
- Fits all Hot Spring ramnges including - Highlife, Hot Spot, Tiger River,Limelight and Caldera Spas.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| Product Dimensions | 4.32 x 8.13 x 8.89 cm; 50 g |
| Part number | 3-1/2" Cap |
| Item display height | 3.5 inches |
| Manufacturer | HOTUBJOY INC |
| Item model number | 3-1/2" Cap |
| ASIN | B09H6TRC77 |

## Product Details

- **Brand:** HOTUBJOY
- **Colour:** White
- **Assembly required:** No
- **Manufacturer:** HOTUBJOY INC

## Images

![3-1/2" Filter Replacement Cap Compatible with Watkins Hot Springs Hot Tubs Filter Standpipe(1, White) - Image 1](https://m.media-amazon.com/images/I/41ilfykC+JL.jpg)

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**Shop now:** [https://www.desertcart.jp/products/420993596-3-1-2-filter-replacement-cap-compatible-with-watkins-hot](https://www.desertcart.jp/products/420993596-3-1-2-filter-replacement-cap-compatible-with-watkins-hot)

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*Product available on Desertcart Japan*
*Store origin: JP*
*Last updated: 2026-02-26*