---
product_id: 292228758
title: "SPEEDAIRE 30E657 300PSI, Coupler Plug, Pipe/Body Size 1/4IN NPT"
brand: "speedaire"
price: "69.37 DT"
currency: TND
in_stock: false
url: https://www.desertcart.tn/products/292228758-speedaire-30e657-300psi-coupler-plug-pipe-body-size-1-4in
store_origin: TN
region: Tunisia
---

# 1/4 inch NPT thread size 300 PSI max pressure Durable alloy steel build SPEEDAIRE 30E657 300PSI, Coupler Plug, Pipe/Body Size 1/4IN NPT

**Brand:** speedaire
**Price:** 69.37 DT
**Availability:** ❌ Out of Stock

## Summary

> ⚡ Plug into power with Speedaire’s 300 PSI precision!

## Quick Answers

- **What is this?** SPEEDAIRE 30E657 300PSI, Coupler Plug, Pipe/Body Size 1/4IN NPT by speedaire
- **How much does it cost?** 69.37 DT with free shipping
- **Is it available?** Currently out of stock
- **Where can I buy it?** [www.desertcart.tn](https://www.desertcart.tn/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

- • **Built to Last:** Crafted from rugged alloy steel with a brass finish for corrosion resistance
- • **Precision Fit:** Standard 1/4 inch NPT threading ensures seamless compatibility
- • **Trusted Brand:** Speedaire quality backed by Grainger’s manufacturing excellence
- • **Compact & Lightweight:** Measuring just 1.5 x 0.3 x 1.5 inches and weighing 0.2 lbs for easy handling
- • **Pressure-Ready Performance:** Handles up to 300 PSI for reliable industrial use

## Overview

The SPEEDAIRE 30E657 Coupler Plug is a compact, high-performance industrial component designed for pneumatic systems. Featuring a robust alloy steel construction with a corrosion-resistant brass finish, it supports pressures up to 300 PSI and fits standard 1/4 inch NPT pipe threads. Ideal for professionals seeking durable, reliable machine parts that deliver seamless integration and long-lasting 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 | #701,346 in Industrial & Scientific ( See Top 100 in Industrial & Scientific ) #1,207 in Industrial Pipes |
| Brand | Speedaire |
| Brand Name | Speedaire |
| Color | Steel |
| Connector Type | Plug |
| Exterior Finish | Brass |
| Item Dimensions | 1.5 x 0.3 x 1.5 inches |
| Item Weight | 0.2 Pounds |
| Item dimensions L x W x H | 1.5 x 0.3 x 1.5 inches |
| Manufacturer | GRAINGER |
| Manufacturer Part Number | 30E657 |
| Material | Alloy Steel |
| 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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**Shop now:** [https://www.desertcart.tn/products/292228758-speedaire-30e657-300psi-coupler-plug-pipe-body-size-1-4in](https://www.desertcart.tn/products/292228758-speedaire-30e657-300psi-coupler-plug-pipe-body-size-1-4in)

---

*Product available on Desertcart Tunisia*
*Store origin: TN*
*Last updated: 2026-06-18*