---
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: "£33.87"
currency: GBP
in_stock: true
category: "Tuna"
url: https://www.desertcart.co.uk/products/282147035-2-pack-fm-approved-and-ul-cul-listed-tuna-fire
store_origin: GB
region: United Kingdom
---

# K=5.6 discharge coefficient 155°F (68°C) temp rating 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:** £33.87
**Availability:** ✅ In Stock

## Summary

> 🔥 Stay protected with precision-engineered fire defense!

## 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?** £33.87 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.co.uk](https://www.desertcart.co.uk/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

- • **Sleek Chrome Finish:** Modern chrome design blends seamlessly with professional spaces
- • **Optimized Water Flow:** K=5.6 discharge coefficient ensures effective spray coverage
- • **Robust Pressure Handling:** Withstands up to 175 psi max working pressure for durability
- • **Certified Safety Assurance:** FM Approved & UL/CUL Listed for trusted reliability
- • **Precision Thermal Activation:** Glass bulb shatters at 155°F for rapid fire response

## Overview

This (2 Pack) TUNA Fire Sprinkler Head features FM Approval and UL/CUL Listing, ensuring top-tier safety compliance. Designed with a 155°F (68°C) glass bulb for fast thermal activation, it delivers a K=5.6 discharge coefficient through a 1/2” NPT tapered thread connection. Built to handle up to 175 psi, its chrome finish offers both durability and a sleek look, making it an essential, reliable component for automatic fire sprinkler systems.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B08NYDVBQN |
| Best Sellers Rank | #358,726 in Patio, Lawn & Garden ( See Top 100 in Patio, Lawn & Garden ) #1,341 in Lawn & Garden Sprinklers |
| Brand | Tuna |
| Brand Name | Tuna |
| Color | Chrome |
| Customer Reviews | 4.1 out of 5 stars 25 Reviews |
| Inlet Connection Size | 0.5 Inches |
| Item Dimensions | 1.3 x 1.3 x 1.97 inches |
| Item dimensions L x W x H | 1.3 x 1.3 x 1.97 inches |
| Manufacturer | TUNA |
| Manufacturer Part Number | NX021C2 |
| Material | Polyvinyl Chloride |
| Material Type | Polyvinyl Chloride |
| Maximum Flow Rate | 5.6 Liters Per Minute |
| Maximum Pressure | 175 Pound per Square Inch |
| Model Number | NX021 |
| Number of Items | 1 |
| Style | Automatic |
| Style Name | Automatic |
| UPC | 705124113369 |
| Unit Count | 2.0 Count |

## Product Details

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

## 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)

## 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.co.uk/products/282147035-2-pack-fm-approved-and-ul-cul-listed-tuna-fire](https://www.desertcart.co.uk/products/282147035-2-pack-fm-approved-and-ul-cul-listed-tuna-fire)

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*Product available on Desertcart United Kingdom*
*Store origin: GB*
*Last updated: 2026-06-11*