---
product_id: 292228758
title: "SPEEDAIRE 30E657 300PSI, Coupler Plug, Pipe/Body Size 1/4IN NPT"
brand: "speedaire"
price: "$19.81"
currency: USD
in_stock: true
url: https://www.desertcart.us/products/292228758-speedaire-30e657-300psi-coupler-plug-pipe-body-size-1-4in
store_origin: US
region: United States of America
---

# 300 PSI Pressure 1/4" NPT Size Steel Construction SPEEDAIRE 30E657 300PSI, Coupler Plug, Pipe/Body Size 1/4IN NPT

**Brand:** speedaire
**Price:** $19.81
**Availability:** ✅ In Stock

## Summary

> 🔧 Connect with Confidence!

## Quick Answers

- **What is this?** SPEEDAIRE 30E657 300PSI, Coupler Plug, Pipe/Body Size 1/4IN NPT by speedaire
- **How much does it cost?** $19.81 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.us](https://www.desertcart.us/products/292228758-speedaire-30e657-300psi-coupler-plug-pipe-body-size-1-4in)

## Best For

- speedaire enthusiasts

## Why This Product

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

## Key Features

- • **Trusted Brand:** Manufactured by Speedaire, a name synonymous with reliability.
- • **Lightweight Design:** Weighs only 0.2 pounds, making it easy to handle and install.
- • **Unmatched Durability:** Crafted from high-quality steel for long-lasting performance.
- • **Effortless Compatibility:** Designed with a 1/4" NPT connector for seamless integration.
- • **High Pressure Capability:** Handles up to 300 PSI, perfect for demanding applications.

## Overview

The SPEEDAIRE 30E657 Coupler Plug is a robust 1/4" NPT connector designed to withstand pressures up to 300 PSI. Made from durable steel with a brass exterior finish, this lightweight yet reliable component is perfect for various machine applications, ensuring seamless connectivity and performance.

## Description

300PSI, COUPLER PLUG, PIPE/BODY SIZE 1/4IN NPT; Part Number: 30E657; Category: Machine Parts; Subcategory: Pipe and Coupling

## Features

- 300PSI
- COUPLER PLUG
- PIPE/BODY SIZE 1/4IN NPT
- Pipe and Coupling
- Machine Parts

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B081LG8M15 |
| Best Sellers Rank | #748,983 in Industrial & Scientific ( See Top 100 in Industrial & Scientific ) #1,306 in Industrial Pipes |
| Brand Name | Speedaire |
| Color | Steel |
| Connector Type | Plug |
| Exterior Finish | Brass |
| Item Dimensions | 1.5 x 0.3 x 1.5 inches |
| Item Weight | 3.2 ounces |
| Manufacturer | GRAINGER |
| Material Type | Alloy Steel |
| Number of Pieces | 1 |
| Thread Type | NPT |
| Unit Count | 1 Count |

## Product Details

- **Brand:** Speedaire
- **Color:** Steel
- **Connector Type:** Plug
- **Exterior Finish:** Brass
- **Item Weight:** 3.2 ounces
- **Item dimensions L x W x H:** 1.5 x 0.3 x 1.5 inches
- **Manufacturer:** GRAINGER
- **Material:** Alloy Steel
- **Number of Pieces:** 1
- **Thread Type:** NPT

## Images

![SPEEDAIRE 30E657 300PSI, Coupler Plug, Pipe/Body Size 1/4IN NPT - Image 1](https://m.media-amazon.com/images/I/41jh6Pcg2TL.jpg)

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---

*Product available on Desertcart United States of America*
*Store origin: US*
*Last updated: 2026-04-27*