---
product_id: 282147035
title: "(2 Pack) FM Approved & UL/CUL Listed TUNA Fire Sprinkler Head Horizontal Sidewall Spray 1/2” NPT 155°F (68°C) K=5.6 Side Wall Spray K80 Standard Response for Automatic Fire Sprinkler System Chrome"
brand: "tuna"
price: "NT$2285"
currency: TWD
in_stock: true
url: https://www.desertcart.tw/products/282147035-2-pack-fm-approved-and-ul-cul-listed-tuna-fire
store_origin: TW
region: Taiwan
---

# K=5.6 discharge coefficient 155°F activation temp 1/2” NPT tapered thread (2 Pack) FM Approved & UL/CUL Listed TUNA Fire Sprinkler Head Horizontal Sidewall Spray 1/2” NPT 155°F (68°C) K=5.6 Side Wall Spray K80 Standard Response for Automatic Fire Sprinkler System Chrome

**Brand:** tuna
**Price:** NT$2285
**Availability:** ✅ In Stock

## Summary

> 🔥 Stay ahead of fire risks with precision-engineered protection!

## Quick Answers

- **What is this?** (2 Pack) FM Approved & UL/CUL Listed TUNA Fire Sprinkler Head Horizontal Sidewall Spray 1/2” NPT 155°F (68°C) K=5.6 Side Wall Spray K80 Standard Response for Automatic Fire Sprinkler System Chrome by tuna
- **How much does it cost?** NT$2285 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.tw](https://www.desertcart.tw/products/282147035-2-pack-fm-approved-and-ul-cul-listed-tuna-fire)

## Best For

- tuna enthusiasts

## Why This Product

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

## Key Features

- • **Optimized Water Flow:** K=5.6 discharge coefficient ensures efficient, powerful spray coverage.
- • **Robust Build Quality:** Factory hydrostatic tested at 500psi for unmatched durability under pressure.
- • **Seamless Installation:** Standard 1/2” NPT tapered threading guarantees a secure, leak-proof fit every time.
- • **Certified Safety Assurance:** FM Approved & UL/CUL Listed for trusted, code-compliant fire protection.
- • **Precision Thermal Activation:** Triggers reliably at 155°F (68°C) to protect your space the moment it’s needed.

## Overview

The TUNA 2 Pack Fire Sprinkler Heads combine FM Approval and UL/CUL listing for top-tier safety compliance. Featuring a 155°F activation temperature and a K=5.6 discharge coefficient, these chrome-finished sidewall sprinklers deliver reliable, efficient fire suppression. Designed with 1/2” NPT tapered threads and factory-tested at 500psi, they ensure easy installation and robust performance in automatic fire sprinkler systems.

## Description

(2 Pack) FM Approved & UL/CUL Listed TUNA Fire Sprinkler Head Horizontal Sidewall Spray 1/2” NPT 155°F (68°C) K=5.6 Side Wall Spray K80 Standard Response for Automatic Fire Sprinkler System Chrome

## Features

- FM Approved 3053441and UL / CUL listed EX6430. 1/2 " NPT (National National Pipe Thread) American thread fire sprinkler heads
- Underwriter Laboratories Listed, UL(United States) and ULC(Canada) Listed
- Nominal 5.6 K-Factor fire sprinkler heads, Dia5mm Glass Bulb Standard Response 155F 68C
- Max working pressure 175psig /1.2Mpa(12 bar);Factory Hydrostatic Test 100%@ 500psig (3.4Mpa)
- Automatic fire sprinklers of the frangible bulb type

## Technical Specifications

| Specification | Value |
|---------------|-------|
| Brand | Tuna |
| Color | Chrome |
| Material | Polyvinyl Chloride |
| Style | Automatic |
| Item dimensions L x W x H | 1.3 x 1.3 x 1.97 inches |
| Maximum Pressure | 175 Pound per Square Inch |
| Maximum Flow Rate | 5.6 Liters Per Minute |
| Manufacturer | TUNA |
| UPC | 705124113369 |
| Number of Items | 1 |
| Part Number | NX021C2 |
| Item Weight | 5 ounces |
| Product Dimensions | 1.3 x 1.3 x 1.97 inches |
| Item model number | NX021 |
| Is Discontinued By Manufacturer | No |
| Pattern | NX021 2 Pack |
| Batteries Included? | No |
| Batteries Required? | No |

## Product Details

- **Brand:** Tuna
- **Color:** Chrome
- **Material:** Polyvinyl Chloride
- **Style:** Automatic
- **Item dimensions L x W x H:** 1.3 x 1.3 x 1.97 inches

## Images

![(2 Pack) FM Approved & UL/CUL Listed TUNA Fire Sprinkler Head Horizontal Sidewall Spray 1/2” NPT 155°F (68°C) K=5.6 Side Wall Spray K80 Standard Response for Automatic Fire Sprinkler System Chrome - Image 1](https://m.media-amazon.com/images/I/91ceVCeatrL.jpg)

## Available Options

This product comes in different **Pattern Name** options.

## Questions & Answers

**Q: Are the ul /fm ratings legit, or is it fishy? (tuna brand lol) ... if legit, please post a link to the certifications.**
A: FM certificate: Search 3053441in www.approvalguide.com after log in
UL certificate:  Search EX6430 in https://iq.ulprospector.com after log in

**Q: Do you realize the manufacturer has acknowledged that their products are falsified fm approved?**
A: I was not aware of this. I will have to address it .
Surprised they are still on Amazon.

## Frequently Bought Together

- (2 Pack) FM Approved & UL/CUL Listed TUNA Fire Sprinkler Head Horizontal Sidewall Spray 1/2” NPT 155°F (68°C) K=5.6 Side Wall Spray K80 Standard Response for Automatic Fire Sprinkler System Chrome
- 5pc Fire Sprinkler Head & Wrench, Pendent Type 155℉ Fire Sprinkler Heads 1/2" NPT Thread 68°C Quick Response Spray Down for Home/Commericial/Workshop/Residential/Factory (Pendent Type)
- 5pc Fire Sprinkler Head & Wrench, 1/2 Inch 155℉ Upright Sprinklers K80 Water Spray Up 68°C Quick Response 1/2 NPT Thread for Home/Commerical/Residential Replacement (Upright Type)

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**Shop now:** [https://www.desertcart.tw/products/282147035-2-pack-fm-approved-and-ul-cul-listed-tuna-fire](https://www.desertcart.tw/products/282147035-2-pack-fm-approved-and-ul-cul-listed-tuna-fire)

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*Product available on Desertcart Taiwan*
*Store origin: TW*
*Last updated: 2026-03-20*