---
product_id: 13593101
title: "Regal A-37-A Urinal Diaphragm Assembly Kit 1.5 GPF - Natural Rubber Diaphragm with Brass Bypass | For use with Regal Flushometers | OEM Sloan Parts, 3301037"
brand: "sloan"
price: "€ 28.90"
currency: EUR
in_stock: true
reviews_count: 8
category: "Sloan"
url: https://www.desertcart.de/products/13593101-regal-a-37-a-urinal-diaphragm-assembly-kit-1-5
store_origin: DE
region: Germany
---

# 1.5 GPF precise flush Natural rubber for durability OEM Sloan genuine parts Regal A-37-A Urinal Diaphragm Assembly Kit 1.5 GPF - Natural Rubber Diaphragm with Brass Bypass | For use with Regal Flushometers | OEM Sloan Parts, 3301037

**Brand:** sloan
**Price:** € 28.90
**Availability:** ✅ In Stock

## Summary

> 🚿 Upgrade your flush game with Sloan’s precision and durability!

## Quick Answers

- **What is this?** Regal A-37-A Urinal Diaphragm Assembly Kit 1.5 GPF - Natural Rubber Diaphragm with Brass Bypass | For use with Regal Flushometers | OEM Sloan Parts, 3301037 by sloan
- **How much does it cost?** € 28.90 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.de](https://www.desertcart.de/products/13593101-regal-a-37-a-urinal-diaphragm-assembly-kit-1-5)

## Best For

- sloan enthusiasts

## Why This Product

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

## Key Features

- • **Seamless Compatibility:** Designed exclusively for Regal Flushometers for hassle-free installation.
- • **Sloan Genuine OEM Quality:** Extend your system’s life with parts engineered to Sloan’s exacting standards.
- • **Precision Flush Every Time:** 1.5 gallons per flush ensures optimal water use without compromise.
- • **Brass Bypass for Reliability:** Corrosion-resistant brass bypass guarantees consistent performance.
- • **Durable Natural Rubber Diaphragm:** Built to last, reducing maintenance frequency and water waste.

## Overview

The Sloan Regal A-37-A Urinal Diaphragm Assembly Kit features a 1.5 GPF natural rubber diaphragm paired with a brass bypass, engineered specifically for Regal Flushometers. This OEM replacement part ensures precise, water-efficient flushing, reduces maintenance needs, and extends the lifespan of commercial restroom systems with Sloan’s trusted quality.

## Description

desertcart.com: Sloan Regal A-37-A Urinal Diaphragm Assembly Kit 1.5 GPF - Natural Rubber Diaphragm with Brass Bypass | For use with Regal Flushometers | OEM Sloan Parts, 3301037 : Tools & Home Improvement

Review: Stop Continuous Flow - Stop Continuous Flow and was fixed in ten minutes
Review: Perfect fit - The product fit perfectly and operates as original the Quality is very good, very easy to install can do it yourself no plumber needed ..

## Features

- Plastic
- Made in the USA
- URINAL DIAPHRAGM ASSEMBLY: Our Regal urinal diaphragm assembly kit is intended to replace worn or end of service life assemblies. The replacement assembly has a natural rubber diaphragm and brass bypass that will ensure an accurate flush every time.
- COMPATIBILITY CHECK: This urinal diaphragm assembly is specifically designed to work as a replacement for our line of Regal Flushometers. Regal urinal diaphragm replacements come in 0.5 gpf, 1.0 gpf, and 1.5 gpf. Always make sure to check part compatibility to ensure a quick, hassle-free repair.
- INTELLIGENT DESIGN: Our Diaphragm Assemblies are specially crafted to limit water closet and urinal water consumption. Worn-out diaphragms can lead to water waste or incorrect flushing amounts. Optimize your flushometers to reduce costs, preserve water, and promote sustainability.
- SLOAN GENUINE PARTS: Extend the life of your Sloan products. Our products perform at their highest levels when maintained exclusively using Sloan Genuine Parts. We offer the largest selection of best-in-class parts, manufactured and tested to Sloan specifications, specifically designed for the most reliable commercial restroom products. This means fewer repairs and protects your investments.
- WATER CONNECTS US: Every day around the world, Sloan products connect the systems that manage our planet's most precious resource. As the world's leading manufacturer of commercial plumbing systems, we've spent more than a century pioneering smart, water-saving restroom solutions that are built to last a lifetime.
- 1. 5 GPF
- 5. 7 LPF
- Use for Older Siphon Jet and some blow out urinals
- Consists of: Diaphragm (A156A), Guide (A163A), Relief Valve (A19AU), and Disc (A15A)

## Technical Specifications

| Specification | Value |
|---------------|-------|
| Brand | Sloan |
| Exterior Finish | Brass |
| Inlet Connection Size | 1.5 Inches |
| Inlet Connection Type | Standard Female NPT Connection |
| Item dimensions L x W x H | 3.3 x 5 x 7.5 inches |
| Material | Plastic |

## Product Details

- **Brand:** Sloan
- **Exterior Finish:** Brass
- **Global Trade Identification Number:** 00671254039438
- **Inlet Connection Size:** 1.5 Inches
- **Inlet Connection Type:** Standard Female NPT Connection
- **Item dimensions L x W x H:** 3.3 x 5 x 7.5 inches
- **Material:** Plastic
- **Number of Ports:** 2
- **Outlet Connection Size:** 1.5 Inches
- **Outlet Connection Type:** 1/2 female NPT

## Images

![Regal A-37-A Urinal Diaphragm Assembly Kit 1.5 GPF - Natural Rubber Diaphragm with Brass Bypass | For use with Regal Flushometers | OEM Sloan Parts, 3301037 - Image 1](https://m.media-amazon.com/images/I/61dc8JQoGEL.jpg)

## Available Options

This product comes in different **Size, Number Of Items** options.

## Questions & Answers

**Q: My flushometer currently has a A-36-A diaphragm kit in it.I am looking to make it more economical.Will the A-38-A do so?Lower the standing water level**
A: Nick B said on November 23, 2014  |  Edit A-36A USE -4.5 GALLONS PER FLUSH /16.9LITERS PER FLUSHA- 38 A USE 3.5 gpf/13.2 Lpf one gallon less

**Q: does this only work for Sloan urinals, Im looking for Crane Urinal parts. will this work?**
A: this is not for other brands, only sloan

**Q: Does this include all of the "guts" needed to rebuild a urinal flush valve?**
A: Yes, except for the vacuum breaker, and anything below that. Also the shut off itself, which may or may not need replacement.

**Q: Does this fit the gem 2?**
A: do not think so, the gem is a cartridge right?

## Customer Reviews

### ⭐⭐⭐⭐⭐ Stop Continuous Flow
*by I***R on December 9, 2025*

Stop Continuous Flow and was fixed in ten minutes

### ⭐⭐⭐⭐⭐ Perfect fit
*by M***S on January 5, 2025*

The product fit perfectly and operates as original the Quality is very good, very easy to install can do it yourself no plumber needed ..

### ⭐⭐⭐⭐⭐ Sloan Regal
*by F***N on September 11, 2025*

It works perfectly.

## Frequently Bought Together

- Sloan Regal A-37-A Urinal Diaphragm Assembly Kit 1.5 GPF - Natural Rubber Diaphragm with Brass Bypass | For use with Regal Flushometers | OEM Sloan Parts, 3301037
- Sloan Regal V-551-A Vacuum Breaker Repair Kit - Replace Broken or Malfunctioning Vacuum Breakers | For use with Regal Flushometers | OEM Sloan Parts, 3323192
- Sloan A-71 Inside Cover for Sloan Flushometers - Compatible with Royal, Regal, Series 900 Hydraulic and PWT Series 600 Flushometers, Original OEM Parts, 0301168

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*Product available on Desertcart Germany*
*Store origin: DE*
*Last updated: 2026-01-30*