---
product_id: 231147325
title: "Class A Customs | Under Mount 30 Gallon RV Concession Fresh and Gray Water Holding Tank & Plumbing Kit | UM-3000-BPK"
brand: "classacustoms"
price: "Bs.7468"
currency: BOB
in_stock: true
url: https://www.desertcart.bo/products/231147325-class-a-customs-under-mount-30-gallon-rv-concession-fresh
store_origin: BO
region: Bolivia
---

# 30 Gallon Capacity Built-in Fittings Basic Plumbing Kit Class A Customs | Under Mount 30 Gallon RV Concession Fresh and Gray Water Holding Tank & Plumbing Kit | UM-3000-BPK

**Brand:** classacustoms
**Price:** Bs.7468
**Availability:** ✅ In Stock

## Summary

> 🚐 Elevate Your RV Experience with Class A Customs!

## Quick Answers

- **What is this?** Class A Customs | Under Mount 30 Gallon RV Concession Fresh and Gray Water Holding Tank & Plumbing Kit | UM-3000-BPK by classacustoms
- **How much does it cost?** Bs.7468 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.bo](https://www.desertcart.bo/products/231147325-class-a-customs-under-mount-30-gallon-rv-concession-fresh)

## 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 Materials:** Safe for drinking water, ensuring peace of mind.
- • **Non-Pressurized Design:** Engineered for safe venting, preventing damage.
- • **Customizable Dimensions:** Rotate the tank for optimal fit in any RV setup.
- • **Versatile Water Storage:** Perfect for both fresh and gray water needs.
- • **User-Friendly Installation:** Includes a comprehensive plumbing kit for easy setup.

## Overview

The Class A Customs Under Mount 30 Gallon RV Concession Fresh and Gray Water Holding Tank is expertly crafted from NSF approved materials, ensuring safety for both fresh and gray water storage. With customizable dimensions and a user-friendly plumbing kit included, this tank is designed for easy installation and optimal performance in any RV setup.

## Description

Class A Customs | Under Mount 30 Gallon RV Concession Fresh and Gray Water Holding Tank & Plumbing Kit | UM-3000-BPK

## Features

- 30 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 20.5” - 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 water-tight, 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 threaded fittings, metal threads may damage tank fittings
- 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

## Product Details

- **Brand:** classAcustoms
- **Color:** White
- **Material:** Polyethylene (PE)
- **Product Dimensions:** 48"L x 20.5"W x 8.5"H
- **Capacity:** 30 Gallons

## Images

![Class A Customs | Under Mount 30 Gallon RV Concession Fresh and Gray Water Holding Tank & Plumbing Kit | UM-3000-BPK - Image 1](https://m.media-amazon.com/images/I/61uZi6KbgzL.jpg)

## Questions & Answers

**Q: One end is 9” what is the tapered height?**
A: Please be sure to view the second photo on this item for measurements.

**Q: Would this work for my forest river flagstaff popup camper?**
A: You would need to compare the measurements of the tank with your available space.

Unfortunately we do not have a list or way to cross reference what tank you have or had in your unit when manufactured, check with the vehicle manufacturer or look for part number on tank.

## Frequently Bought Together

- Class A Customs | Under Mount 30 Gallon RV Concession Fresh and Gray Water Holding Tank & Plumbing Kit | UM-3000-BPK
- SEAFLO 33-Series Water Pressure Pump - 115V AC, 3.3 GPM, 45 PSI, Self Priming, Smart Pressure Switch, UL & CSA Certified, for RV, Caravan, Off-Grid, Marine, and Industrial Use
- Class A Customs | Under Mount 25 Gallon RV Concession Fresh and Gray Water Holding Tank | UM-2500

---

## Why Shop on Desertcart?

- 🛒 **Trusted by 1.3+ Million Shoppers** — Serving international shoppers since 2016
- 🌍 **Shop Globally** — Access 737+ million products across 21 categories
- 💰 **No Hidden Fees** — All customs, duties, and taxes included in the price
- 🔄 **15-Day Free Returns** — Hassle-free returns (30 days for PRO members)
- 🔒 **Secure Payments** — Trusted payment options with buyer protection
- ⭐ **TrustPilot Rated 4.5/5** — Based on 8,000+ happy customer reviews

**Shop now:** [https://www.desertcart.bo/products/231147325-class-a-customs-under-mount-30-gallon-rv-concession-fresh](https://www.desertcart.bo/products/231147325-class-a-customs-under-mount-30-gallon-rv-concession-fresh)

---

*Product available on Desertcart Bolivia*
*Store origin: BO*
*Last updated: 2026-03-16*