---
product_id: 145924448
title: "haisstronica 200PCS Marine Grade Heat Shrink Wire Butt Connectors,26-10 Gauge Wire Connectors-Tinned Red Copper Waterproof -Butt Splice Connectors(4Colors/4Sizes)"
brand: "haisstronica"
price: "239 Lei"
currency: RON
in_stock: true
reviews_count: 13
category: "Haisstronica"
url: https://www.desertcart.ro/products/145924448-haisstronica-200pcs-marine-grade-heat-shrink-wire-butt-connectors-26
store_origin: RO
region: Romania
---

# 600V max voltage Waterproof & saltwater-proof 221°F heat resistance haisstronica 200PCS Marine Grade Heat Shrink Wire Butt Connectors,26-10 Gauge Wire Connectors-Tinned Red Copper Waterproof -Butt Splice Connectors(4Colors/4Sizes)

**Brand:** haisstronica
**Price:** 239 Lei
**Availability:** ✅ In Stock

## Summary

> 🔧 Seal the deal with marine-grade power and protection!

## Quick Answers

- **What is this?** haisstronica 200PCS Marine Grade Heat Shrink Wire Butt Connectors,26-10 Gauge Wire Connectors-Tinned Red Copper Waterproof -Butt Splice Connectors(4Colors/4Sizes) by haisstronica
- **How much does it cost?** 239 Lei with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.ro](https://www.desertcart.ro/products/145924448-haisstronica-200pcs-marine-grade-heat-shrink-wire-butt-connectors-26)

## Best For

- haisstronica enthusiasts

## Why This Product

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

## Key Features

- • **DIY-Friendly Operation:** Easy to use with common heat tools—no torch needed—perfect for home, automotive, and marine projects.
- • **Marine-Grade Durability:** Tinned copper core resists corrosion for reliable conductivity even in harsh saltwater environments.
- • **Ultimate Waterproof Seal:** Heat-activated adhesive lining ensures a 3:1 shrink ratio for a flame-retardant, watertight connection.
- • **Versatile Gauge Compatibility:** Supports 26-10 AWG wires across 4 color-coded sizes for precise, professional splicing.
- • **Certified Safety & Performance:** Meets all electrical standards with polyolefin insulation that resists chemical erosion and physical damage.

## Overview

The haisstronica 200PCS Marine Grade Heat Shrink Wire Butt Connectors deliver professional-grade electrical connections with a tinned copper core and polyolefin insulation. Rated for 600 volts and 221°F, these connectors provide a waterproof, flame-retardant seal ideal for marine, automotive, and home applications. Their 3:1 shrink ratio and hot melt adhesive ensure secure, corrosion-resistant splices across 26-10 gauge wires, making them a trusted choice for demanding environments.

## Description

haisstronica 200PCS Marine Grade Heat Shrink Wire Butt Connectors,26-10 Gauge Wire Connectors-Tinned Red Copper Waterproof -Butt Splice Connectors(4Colors/4Sizes): desertcart.com: Industrial & Scientific

Review: Full saltwater proof on boat trailer - Works really good for my boat trailer, I live in Florida so it’s fully waterproof with the salt water here. Easy to wire I advise to use a heat gun or candle lighter don’t use a torch. Good product
Review: Great product - They work and seal up very well

## Features

- High-Quality Tinned Copper Core- The heat shrinking connector copper core uses tinned copper, which is easier to flatten and grasp the wires, to enhance electrical conductivity
- Polyolene Pipes- The connector shell is made of high-quality polyolefine and will not break the insulation layer when being pressed. They are resistant to corrosion and chemical erosion
- Sufficient Hot Melt Adhesive- The connector contains sufficient hot melt adhesive, which generates more adhesive to wrap the wires during use, so the wires will not be easily detached
- Easy to Use- Compared with other connectors, the heat shrinking connector has a larger selection of fitting tools and is easier to operate in the compressing process, suitable for DIY
- WIDE APPLICATIONS: High quality 3:1 shrinkage tubing has a heat-activated sealant lining to provide complete secure seal. It's flame-retardant, waterproof, and can be used underground. Compliant with all electrical standards, Perfect for marine and automobile applications, whether you are working on your boat, Vehicle, Home or scientific project

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B07RX6QYX5 |
| Best Sellers Rank | #934 in Industrial & Scientific ( See Top 100 in Industrial & Scientific ) #3 in Butt Terminals |
| Brand | haisstronica |
| Color | Blue Yellow Red White |
| Connector Type | Butt Splice |
| Contact Material | Copper |
| Date First Available | May 17, 2019 |
| Insulation Material | Polyolefin |
| Item Weight | 12.7 ounces |
| Item model number | HX1053 |
| Manufacturer | haisstronica |
| Material | Copper |
| Maximum Voltage | 600 Volts (DC) |
| Product Dimensions | 1"L x 1"W x 1"H |
| Temperature Rating | 221 degree fahrenheit |
| Terminal | Butt Terminal |
| UPC | 192687289905 |
| Unit Count | 1 Count |

## Product Details

- **Color:** Blue Yellow Red White
- **Connector Type:** Butt Splice
- **Contact Material:** Copper
- **Insulation Material:** Polyolefin
- **Terminal:** Butt Terminal

## Images

![haisstronica 200PCS Marine Grade Heat Shrink Wire Butt Connectors,26-10 Gauge Wire Connectors-Tinned Red Copper Waterproof -Butt Splice Connectors(4Colors/4Sizes) - Image 1](https://m.media-amazon.com/images/I/415J+cq9YPL.jpg)
![haisstronica 200PCS Marine Grade Heat Shrink Wire Butt Connectors,26-10 Gauge Wire Connectors-Tinned Red Copper Waterproof -Butt Splice Connectors(4Colors/4Sizes) - Image 2](https://m.media-amazon.com/images/I/41XKfCPfx9S.jpg)
![haisstronica 200PCS Marine Grade Heat Shrink Wire Butt Connectors,26-10 Gauge Wire Connectors-Tinned Red Copper Waterproof -Butt Splice Connectors(4Colors/4Sizes) - Image 3](https://m.media-amazon.com/images/I/41yMapDRGPL.jpg)
![haisstronica 200PCS Marine Grade Heat Shrink Wire Butt Connectors,26-10 Gauge Wire Connectors-Tinned Red Copper Waterproof -Butt Splice Connectors(4Colors/4Sizes) - Image 4](https://m.media-amazon.com/images/I/51GWkPXVemL.jpg)
![haisstronica 200PCS Marine Grade Heat Shrink Wire Butt Connectors,26-10 Gauge Wire Connectors-Tinned Red Copper Waterproof -Butt Splice Connectors(4Colors/4Sizes) - Image 5](https://m.media-amazon.com/images/I/51flU4mrYuL.jpg)

## Available Options

This product comes in different **Style** options.

## Questions & Answers

**Q: why do you crimp the connector 3x?  One for each wire, what is the 3rd?**
A: I’m not sure why you have to crimp 3x’s unless their tool is designed that way? I only crimped  twice in my engine compartment of my pickup and have had no issues.

**Q: Will these work for 10/2 wire at 230V and 20 amps?**
A: You should be able to use on 230 volt 20 amp.  The yellow should handle 30 amp minimum. Usually if the wires fit in it. It will work

**Q: Do you have the Butt connectors that are 12-10 on one end and 16-14 on the other**
A: No, they are the same on each end. The colors indicate the size, as well they are labeled.

**Q: Can these be submerged? I want to use them for a bilge pump.**
A: Yes you can, the discription of the product says they are Marine Grade Waterproof Wire Connectors.

## Customer Reviews

### ⭐⭐⭐⭐⭐ Full saltwater proof on boat trailer
*by M***T on January 26, 2026*

Works really good for my boat trailer, I live in Florida so it’s fully waterproof with the salt water here. Easy to wire I advise to use a heat gun or candle lighter don’t use a torch. Good product

### ⭐⭐⭐⭐⭐ Great product
*by J***N on January 26, 2026*

They work and seal up very well

### ⭐⭐⭐⭐⭐ Buy These and the matching Crimp tool from Hassitronica!
*by P***O on September 13, 2025*

These are fantastic crimps. Buy the hassitronica crimp tool. Bought some ring terminal crimps from another brand and they included some butt crimps. All of them were low quality, weak crimps that didnt hold. These crimp solidly and the shrink wrap really holds the wire in place. I havent measured ohms across them but they seem to make solid connections. I am using them on an aem twin fire cdi igntion system which draws lots of power without issue as well as every other connection on my project car. Great value, will purchase again once I run out as I am on my second set already.

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**Shop now:** [https://www.desertcart.ro/products/145924448-haisstronica-200pcs-marine-grade-heat-shrink-wire-butt-connectors-26](https://www.desertcart.ro/products/145924448-haisstronica-200pcs-marine-grade-heat-shrink-wire-butt-connectors-26)

---

*Product available on Desertcart Romania*
*Store origin: RO*
*Last updated: 2026-02-13*