---
product_id: 220612229
title: "classAcustoms | Under Mount 20 Gallon RV Concession Fresh and Gray Water Holding Tank & Plumbing Kit UM-2000-BPK"
brand: "classacustoms"
price: "A$838"
currency: AUD
in_stock: true
url: https://www.desertcart.com.au/products/220612229-classacustoms-under-mount-20-gallon-rv-concession-fresh-and-gray
store_origin: AU
region: Australia
---

# 20 Gallon Capacity Built-in Fittings Basic Plumbing Kit classAcustoms | Under Mount 20 Gallon RV Concession Fresh and Gray Water Holding Tank & Plumbing Kit UM-2000-BPK

**Brand:** classacustoms
**Price:** A$838
**Availability:** ✅ In Stock

## Summary

> 🚀 Elevate Your RV Experience with Class A Customs!

## Quick Answers

- **What is this?** classAcustoms | Under Mount 20 Gallon RV Concession Fresh and Gray Water Holding Tank & Plumbing Kit UM-2000-BPK by classacustoms
- **How much does it cost?** A$838 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.com.au](https://www.desertcart.com.au/products/220612229-classacustoms-under-mount-20-gallon-rv-concession-fresh-and-gray)

## Best For

- classacustoms enthusiasts

## Why This Product

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

## Key Features

- • **🔒 NSF Approved:** Manufactured with safety in mind, ensuring fresh and drinking water safety.
- • **🚐 Versatile Storage:** Perfect for both fresh and gray water, catering to all your RV needs.
- • **🧰 Complete Plumbing Kit:** Includes essential fittings and hoses for a hassle-free installation.
- • **🔄 Non-Pressurized Design:** Engineered for safe venting, preventing any risk of explosion.
- • **📏 Customizable Dimensions:** Easily rotate the tank to fit your space—adaptable to any RV setup.

## Overview

The Class A Customs Under Mount 20 Gallon RV Concession Fresh and Gray Water Holding Tank & Plumbing Kit (UM-2000-BPK) is a versatile and safe solution for your RV water storage needs. Made from NSF approved materials, this tank is designed for both fresh and gray water, featuring built-in fittings and a comprehensive plumbing kit for easy installation. With customizable dimensions and a non-pressurized design, it ensures safety and adaptability for any RV setup.

## Description

classAcustoms | Under Mount 20 Gallon RV Concession Fresh and Gray Water Holding Tank & Plumbing Kit UM-2000-BPK

## Features

- 20 Gallon Fresh or Gray Water Holding Tank Manufactured by Class A Customs - Made from NSF Approved Materials - Fresh & Drinking Water Safe - Can be used for Fresh or Gray Water Storage
- WATER TANK MEASUREMENTS: 48” Longest Length (not including fittings) x 8.5” x 13” - Tank can sit on any side - rotate tank to change height or width Average Thickness 7/32” +/- Please view photos. (Due to the manufacturing process +/- .25" on each measurement)
- TANK BUILT-IN FITTINGS: (TWO) 1.5" Female NPT Fitting - fitting is sealed and watertight, to use remove membrane with razor knife (TWO) .5" Female NPT Fitting - fitting is open DO NOT over-tighten fitting damage will occur, use plastic connecting fittings as metal will damage threads.
- NON-PRESSURIZED TANK: tank must be vented allowing air in and out during use. DO NOT make a sealed connection with a garden hose directly to tank, this is a pressurized connection and will cause tank to explode causing damage. For filling tank it is recommended to use a fill dish or other gravity process.
- BASIC PLUMBING KIT INCLUDES - (TWO) 0.5” Hose Barb to 0.5” Male Pipe Thread Adaptor (FOUR) 0.5” Hose Clamp (ONE) 1.25” Hose Barb to 1.5” Male Pipe Thread Adaptor (TWO) 1.5” Hose Clamps (ONE) 1.5” Male Pipe Thread PVC Male Adaptor (ONE) 5ft. Section of 0.5” ID Vent/Draw Hose (ONE) 5ft. Section of 1.25” ID (1.375” OD) Fill Hose

## Technical Specifications

| Specification | Value |
|---------------|-------|
| Manufacturer | Class A Customs |
| Brand | classAcustoms |
| Item Weight | 30 pounds |
| Product Dimensions | 32.5 x 11.75 x 11.75 inches |
| Item model number | UM-2000-BPK |
| Is Discontinued By Manufacturer | No |
| Manufacturer Part Number | UM-2000-BPK |

## Images

![classAcustoms | Under Mount 20 Gallon RV Concession Fresh and Gray Water Holding Tank & Plumbing Kit UM-2000-BPK - Image 1](https://m.media-amazon.com/images/I/61cG+KCg8KL.jpg)

## Frequently Bought Together

- Class A Customs | Under Mount 20 Gallon RV Concession Fresh and Gray Water Holding Tank & Plumbing Kit UM-2000-BPK
- Class A Customs | Under Mount 25 Gallon RV Concession Fresh and Gray Water Holding Tank | UM-2500
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**Shop now:** [https://www.desertcart.com.au/products/220612229-classacustoms-under-mount-20-gallon-rv-concession-fresh-and-gray](https://www.desertcart.com.au/products/220612229-classacustoms-under-mount-20-gallon-rv-concession-fresh-and-gray)

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*Product available on Desertcart Australia*
*Store origin: AU*
*Last updated: 2026-02-27*