---
product_id: 294102399
title: "1\" RP-501 Nylon Composite Reduced Pressure Backflow Preventer"
brand: "ubs - a.r.i."
price: "€ 646.59"
currency: EUR
in_stock: true
reviews_count: 5
category: "Ubs   A.R.I."
url: https://www.desertcart.es/products/294102399-1-rp-501-nylon-composite-reduced-pressure-backflow-preventer
store_origin: ES
region: Spain
---

# Lightweight with Low Friction Loss Modular Composite Body & Valves USC Theft Deterrent Approved 1" RP-501 Nylon Composite Reduced Pressure Backflow Preventer

**Brand:** ubs - a.r.i.
**Price:** € 646.59
**Availability:** ✅ In Stock

## Summary

> 💧 Secure your flow, save your wallet, and stay ahead of the curve!

## Quick Answers

- **What is this?** 1" RP-501 Nylon Composite Reduced Pressure Backflow Preventer by ubs - a.r.i.
- **How much does it cost?** € 646.59 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.es](https://www.desertcart.es/products/294102399-1-rp-501-nylon-composite-reduced-pressure-backflow-preventer)

## Best For

- ubs - a.r.i. enthusiasts

## Why This Product

- Trusted ubs - a.r.i. brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Optimized Flow Efficiency ⚡:** Lightweight construction reduces friction loss, ensuring peak water pressure and system performance.
- • **Built to Outsmart Theft 🛡️:** USC-approved theft deterrent design keeps your investment secure in high-risk areas.
- • **Integrated Testing Made Simple 🔧:** Built-in test cocks allow quick, hassle-free system checks to maintain water safety without downtime.
- • **Certified for Safety & Compliance ✅:** Meets top industry standards including ASSE 1013, NSF 61-G, and WaterMark Australia for reliable potable water protection.
- • **Engineered for Effortless Maintenance ⚙️:** Modular nylon composite body and valves simplify repairs, saving you time and money.

## Overview

The 1" RP-501 Nylon Composite Reduced Pressure Backflow Preventer by A.R.I. Flow Control is a lightweight, modular device featuring dual spring-loaded check valves and a hydraulic relief valve to prevent contamination. USC theft deterrent approved and compliant with major safety standards, it offers easy maintenance with built-in test cocks and durable nylon construction designed for efficient, low-friction water flow.

## Description

Not all backflow preventers are created equal, and the RP-501 series from ARI are a prime example. The 1" RP-501 series of backflow preventers from ARI are comprised of two independent, spring-loaded check valves and a hydraulically operated differential pressure relief valve. The relief valve allows harmful contaminants to be released from the pipeline before interfering with your water supply. The 1 inch reduce pressure backflow preventer from ARI includes a Nylon shutoff valve at both ends of the device. The equipment also includes built-in test cocks. Approved Standards: USC FCCC-HR, ASSE 1013, AWWA C511, NSF 61-G, CSA B64.4, WaterMark (Australia)

Review: Do not let the plastic scare you! - If you live in an area where metal theft is common this is the way to go. Or in my case you are looking to save you or a customer money on RPZ. The RPZ was high quality and meets all lead codes for potable water. Repair parts are available from the manufacturer and is easy to do as well.
Review: Doesn't hold up, will break apart shortly after running water thru it. - Garbage plastic that breaks if you look at it wrong. Got it to replace a 975XL, just spend the extra money and get an exact replacement.

## Features

- Theft Deterrent with USC Approval
- Complete Composite Body and Valves for a Modular Design
- Low Cost Service & Repair!
- Light Weight with Low Friction Loss!
- Theft Free!

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B077GFXG89 |
| Batteries Included? | No |
| Batteries Required? | No |
| Best Sellers Rank | #287,626 in Industrial & Scientific ( See Top 100 in Industrial & Scientific ) #352 in Relief Valves |
| Brand | UBS - A.R.I. |
| Color | Black |
| Customer Reviews | 3.7 3.7 out of 5 stars (9) |
| Date First Available | November 14, 2017 |
| Exterior Finish | Nylon |
| Global Trade Identification Number | 00860154000772 |
| Inlet Connection Size | 1 Inches |
| Inlet Connection Type | G Connector |
| Is Discontinued By Manufacturer | No |
| Item Weight | 4.44 pounds |
| Item dimensions L x W x H | 14.1 x 6.69 x 3.94 inches |
| Item model number | RP-501 |
| Manufacturer | A.R.I. Flow Control |
| Material | Nylon |
| Number of Ports | 2 |
| Outlet Connection Type | G Connector |
| Power Source | Ac/dc |
| Product Dimensions | 14.1 x 6.69 x 3.94 inches |
| Size | 1 Inch |
| Specification Met | csa b64.4 |

## Product Details

- **Brand:** UBS - A.R.I.
- **Exterior Finish:** Nylon
- **Global Trade Identification Number:** 00860154000772
- **Inlet Connection Size:** 1 Inches
- **Inlet Connection Type:** G Connector
- **Item dimensions L x W x H:** 14.1 x 6.69 x 3.94 inches
- **Material:** Nylon
- **Number of Ports:** 2
- **Outlet Connection Type:** G Connector
- **Specification Met:** csa b64.4

## Images

![1" RP-501 Nylon Composite Reduced Pressure Backflow Preventer - Image 1](https://m.media-amazon.com/images/I/61ux1cB+g+L.jpg)
![1" RP-501 Nylon Composite Reduced Pressure Backflow Preventer - Image 2](https://m.media-amazon.com/images/I/81jkyf5GCpL.jpg)
![1" RP-501 Nylon Composite Reduced Pressure Backflow Preventer - Image 3](https://m.media-amazon.com/images/I/61vUFMvMEFL.jpg)
![1" RP-501 Nylon Composite Reduced Pressure Backflow Preventer - Image 4](https://m.media-amazon.com/images/I/81qFpyahlpL.jpg)

## Customer Reviews

### ⭐⭐⭐⭐⭐ Do not let the plastic scare you!
*by J***I on October 13, 2023*

If you live in an area where metal theft is common this is the way to go. Or in my case you are looking to save you or a customer money on RPZ. The RPZ was high quality and meets all lead codes for potable water. Repair parts are available from the manufacturer and is easy to do as well.

### ⭐ Doesn't hold up, will break apart shortly after running water thru it.
*by S***F on April 18, 2025*

Garbage plastic that breaks if you look at it wrong. Got it to replace a 975XL, just spend the extra money and get an exact replacement.

### ⭐⭐⭐⭐⭐ Review
*by C***S on August 28, 2024*

Económico y muy eficaz

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*Product available on Desertcart Spain*
*Store origin: ES*
*Last updated: 2026-02-26*