---
product_id: 531346574
title: "Spa Replacement Cap Standpipe, 3-1/2\" - 31389"
brand: "hot spring"
price: "B/.154"
currency: PAB
in_stock: true
reviews_count: 5
category: "Hot Spring"
url: https://www.desertcart.com.pa/products/531346574-spa-replacement-cap-standpipe-3-1-2-31389
store_origin: PA
region: Panama
---

# Compact 2.9-inch height Precision threaded fit Durable plastic vinyl build Spa Replacement Cap Standpipe, 3-1/2" - 31389

**Brand:** hot spring
**Price:** B/.154
**Availability:** ✅ In Stock

## Summary

> 🛁 Keep your spa flawless with the perfect fit cap standpipe!

## Quick Answers

- **What is this?** Spa Replacement Cap Standpipe, 3-1/2" - 31389 by hot spring
- **How much does it cost?** B/.154 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.com.pa](https://www.desertcart.com.pa/products/531346574-spa-replacement-cap-standpipe-3-1-2-31389)

## Best For

- hot spring enthusiasts

## Why This Product

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

## Key Features

- • **Durable & Reliable:** Crafted from resilient plastic vinyl to withstand spa conditions and last season after season.
- • **Effortless Replacement:** No assembly needed—snap in a perfect fit and get back to relaxing faster.
- • **Sleek Minimalist Design:** Clean white finish blends discreetly into your spa’s filter compartment for a polished look.
- • **Seamless Filter Stability:** Threaded standpipe cap locks your filter vertically for flawless spa performance.
- • **Universal Hot Spring Compatibility:** Designed specifically for Hot Spring spas, ensuring a hassle-free upgrade or replacement.

## Overview

The Hot Spring Spa Replacement Cap Standpipe (3-1/2", model 31389) is a precision-engineered, durable plastic vinyl component that secures your spa filter vertically. Designed for easy, no-assembly installation, it fits seamlessly into the filter compartment of Hot Spring spas, ensuring optimal filtration performance and longevity.

## Description

Filter standpipe cap in white for Hot Spring Spas. The standpipe, located in the filter compartment, consists of a standpipe and a cap. The standpipe is threaded into the filter wall fitting in the floor of the filter compartment. The standpipe secures the filter in a vertical position.

Review: Perfect fit
Review: Needed replacement

## Features

- Part Number: 31389
- Filter Standpipe Cap in White for Hot Spring Spas.
- The standpipe is threaded into filter wallfitting in the floor of the filter compartment.
- The Hot Springs Spa Replacement Cap Standpipe secures the filter in a vertical position.
- Hot Spring Spa Supplies carries spa fragrances, air & water valves, control systems, filter accessories, lights, cleaners, pumps, thermostats, and more for virtually every hot spring model.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B072843249 |
| Assembly Required | No |
| Brand | Hot Spring |
| Colour | white |
| Customer Reviews | 4.7 out of 5 stars 198 Reviews |
| Enclosure Material | Plastic Vinyl |
| Item Height | 2.9 Inches |
| Item Weight | 0.01 Ounces |
| Manufacturer | Watkins |
| Material | Plastic Vinyl |
| Shape | Round |
| UPC | 600291234476 |

## Product Details

- **Brand:** Hot Spring
- **Colour:** white
- **Item Weight:** 0.01 Ounces
- **Material:** Plastic Vinyl
- **Shape:** Round

## Images

![Spa Replacement Cap Standpipe, 3-1/2" - 31389 - Image 1](https://m.media-amazon.com/images/I/41+M1gExBtL.jpg)

## Customer Reviews

### ⭐⭐⭐⭐⭐ Perfect fit
*by W***T on 30 June 2025*



### ⭐⭐⭐⭐⭐ Needed replacement
*by M***N on 15 November 2023*



### ⭐⭐⭐⭐⭐ An awesome replacement
*by G***E on 26 July 2023*



## Frequently Bought Together

- Hot Spring Spa Replacement Cap Standpipe, 3-1/2" - 31389
- HSS Filter Standpipe Cap, Grey 36513
- POOLPURE C-6430 Spa Filter Replaces 31489, PWK30, Filbur FC-3915, P/N0969601, 71825, 73178, 73250, 30 sq. ft. Hot Spring Spa Filter 3 Pack

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**Shop now:** [https://www.desertcart.com.pa/products/531346574-spa-replacement-cap-standpipe-3-1-2-31389](https://www.desertcart.com.pa/products/531346574-spa-replacement-cap-standpipe-3-1-2-31389)

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*Product available on Desertcart Panama*
*Store origin: PA*
*Last updated: 2026-02-25*