---
product_id: 162909849
title: "JR Products 321-B-36-A City Water Dish, 1/2\", Black"
brand: "jr products"
price: "¥12085"
currency: JPY
in_stock: true
reviews_count: 8
url: https://www.desertcart.jp/products/162909849-jr-products-321-b-36-a-city-water-dish-1
store_origin: JP
region: Japan
---

# Precise 3.5" cutout diameter Lead-free brass check valve UV & impact resistant JR Products 321-B-36-A City Water Dish, 1/2", Black

**Brand:** jr products
**Price:** ¥12085
**Availability:** ✅ In Stock

## Summary

> 🚰 Elevate your water system with precision and durability—don’t settle for less!

## Quick Answers

- **What is this?** JR Products 321-B-36-A City Water Dish, 1/2", Black by jr products
- **How much does it cost?** ¥12085 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/162909849-jr-products-321-b-36-a-city-water-dish-1)

## Best For

- jr products enthusiasts

## Why This Product

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

## Key Features

- • **Built to Withstand:** UV and impact resistant, engineered to resist road salts and acids
- • **Optimized Valve Depth:** 2-1/2" valve depth ensures efficient water flow and reliable operation
- • **OEM Direct Replacement:** Fits perfectly with 1/2” MPT connections—no hassle, no guesswork
- • **Premium Lead-Free Brass:** Durable, safe, and corrosion-resistant for long-lasting performance
- • **Compact Precision Design:** 3-1/2" cutout with 4-3/4" outer diameter fits seamlessly in tight spaces

## Overview

The JR Products 321-B-36-A City Water Dish is a robust, lead-free brass check valve designed for seamless OEM replacement with 1/2” MPT connections. Its UV and impact-resistant construction ensures longevity against harsh elements like road salts and acids. With precise cutout and valve dimensions, it offers a compact, reliable solution for professional-grade water leveling needs.

## Description

......

## Features

- Lead free brass check valve with 1/2” MPT
- Direct OEM replacement
- UV and impact resistant, resists road salts and acids
- Cutout Dimensions: 3-1/2" diameter; Outside Dimensions: 4-3/4" diameter
- Dish Depth: 3/4"; Valve Depth: 2-1/2"

## Technical Specifications

| Specification | Value |
|---------------|-------|
| Material | Brass |
| Brand | JR Products |
| Item dimensions L x W x H | 9 x 55 x 0.34 inches |
| Inlet Connection Size | 0.5 Inches |
| Inlet Connection Type | Male Pipe Thread |
| Outlet Connection Size | 0.5 Inches |
| Specification Met | oem |
| Valve Type | Lift Check Valve |
| Global Trade Identification Number | 00756815001366 |
| Manufacturer | JR Products |
| UPC | 756815001366 |
| Item Weight | 5.6 ounces |
| Product Dimensions | 9 x 55 x 0.34 inches |
| Item model number | 321-B-36-A |
| Is Discontinued By Manufacturer | No |
| Manufacturer Part Number | 321-B-36-A |

## Product Details

- **Material:** Brass
- **Brand:** JR Products
- **Item dimensions L x W x H:** 9 x 55 x 0.34 inches
- **Inlet Connection Size:** 0.5 Inches
- **Inlet Connection Type:** Male Pipe Thread
- **Outlet Connection Size:** 0.5 Inches
- **Specification Met:** oem
- **Valve Type:** Lift Check Valve
- **Global Trade Identification Number:** 00756815001366
- **Manufacturer:** JR Products

## Images

![JR Products 321-B-36-A City Water Dish, 1/2", Black - Image 1](https://m.media-amazon.com/images/I/61pSVQO8BpL.jpg)

## Available Options

This product comes in different **Color** options.

## Customer Reviews

### ⭐⭐⭐⭐⭐ Made very well
*by A***R on June 11, 2024*

Fit like a glove. Does not come with the butyl tape to seal it to the camper exterior but a quick trip to the home store fixed that. Easy installation with no leaks.

### ⭐⭐⭐⭐⭐ Everything went well
*by R***J on July 22, 2022*

Everything went well for me. I carefully installed and took my time. No leaks of any sort. It is still holding and working 2 years later. The old one went bad and I needed this new one. Thankful to have saved some money and do it myself.

### ⭐⭐⭐⭐⭐ This was a good value
*by R***N on May 14, 2019*

they did not give you a option for a 45 deg. for hookup in motor home Home Depot has what you need if a 45 is needed. other than that it was easy to install and works great I would buy it again if I needed one. The backflow preventer is much better quality then what the RV manuf. install it is all brass not cheap plastic.

---

## 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.jp/products/162909849-jr-products-321-b-36-a-city-water-dish-1](https://www.desertcart.jp/products/162909849-jr-products-321-b-36-a-city-water-dish-1)

---

*Product available on Desertcart Japan*
*Store origin: JP*
*Last updated: 2026-01-24*