---
product_id: 287219678
title: "8mm THROUGH-HULL TANK CONNECTOR BULKHEAD for Reservoir/Rain Barrel and Watering Systems"
brand: "blumat"
price: "€ 25.77"
currency: EUR
in_stock: true
reviews_count: 5
category: "Blumat"
url: https://www.desertcart.hr/products/287219678-8mm-through-hull-tank-connector-bulkhead-for-reservoir-rain-barrel
store_origin: HR
region: Croatia
---

# Eco-friendly rainwater use Leak-proof washer 8mm universal fit 8mm THROUGH-HULL TANK CONNECTOR BULKHEAD for Reservoir/Rain Barrel and Watering Systems

**Brand:** blumat
**Price:** € 25.77
**Availability:** ✅ In Stock

## Summary

> 💧 Upgrade your watering game with leak-proof precision!

## Quick Answers

- **What is this?** 8mm THROUGH-HULL TANK CONNECTOR BULKHEAD for Reservoir/Rain Barrel and Watering Systems by blumat
- **How much does it cost?** € 25.77 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.hr](https://www.desertcart.hr/products/287219678-8mm-through-hull-tank-connector-bulkhead-for-reservoir-rain-barrel)

## Best For

- blumat enthusiasts

## Why This Product

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

## Key Features

- • **No-Leak Assurance:** Special internal washer guarantees a watertight seal, protecting your system from drips and damage.
- • **Effortless Installation:** Simply drill a 1/2" hole and secure—no plumbing expertise required to upgrade your watering setup.
- • **Universal Compatibility:** Transforms any reservoir or rain barrel into a smart Blumat water source effortlessly.
- • **Seamless Blumat Integration:** Direct 8mm barb connection ensures hassle-free hookup to your Blumat irrigation line.
- • **Premium European Craftsmanship:** Engineered by the makers of Blumat sensors for unmatched durability and precision.

## Overview

The Blumat 8mm Through-Hull Tank Connector Bulkhead is a high-quality, easy-to-install fitting that converts rain barrels and water tanks into efficient Blumat irrigation reservoirs. Featuring a leak-proof washer and direct 8mm line compatibility, it ensures a secure, universal connection backed by trusted European manufacturing standards.

## Description

Connect a Blumat system to a rain barrel or water storage tank. Just screw half on the inside of the tank, the other on the outside. The nipple connects to the standard Blumat 8 mm water supply/feed line.

Review: Gute Wasserdurchführung - Artikel wie beschrieben und hält super dicht. Anschluss und Montage klappte perfekt.
Review: Très pratique pour les systèmes Blumat - Raccord de bonne qualité et très pratique pour réaliser le branchement d'un réservoir avec un système Blumat. L'installation est simple et le raccord s'intègre parfaitement au système. Les connexions sont faciles à réaliser et l'ensemble semble solide et fiable. Très pratique pour automatiser l'arrosage sans avoir à raccorder directement le système au réseau d'eau. Un accessoire indispensable pour ceux qui utilisent un réservoir avec un système Blumat. Bon rapport qualité/prix, je recommande 👍

## Features

- UNIVERSAL: Convert reservoirs, rain barrels, water tanks, or almost any container into a blumat water source
- CONNECTS DIRECTLY TO BLUMAT LINE: Output barb for standard Blumat 8mm supply line or to other sizes of pipe with (not included) fittings
- SIMPLE: Drill a hole (using 1/2" bit) into your container, and install with the facing outward
- NO LEAKS: Special washer for inside of tank to prevent water leaks
- HIGH QUALITY: Made by the same precise European quality and company that makes Blumat sensors

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B0017VN5QM |
| Brand | Blumat |
| Brand Name | Blumat |
| Color | Black |
| Colour | Black |
| Connector Type | Barb |
| Connector type | Barb |
| Customer Reviews | 4.5 out of 5 stars 267 Reviews |
| Global Trade Identification Number | 09002683030238 |
| Item Dimensions | 5.1 x 4.6 x 4.6 centimeters |
| Item Weight | 0.1 Grams |
| Item dimensions L x W x H | 5.1 x 4.6 x 4.6 centimeters |
| Manufacturer | Sustainable Village, LLC |
| Manufacturer Part Number | 30238 |
| Material | Plastic |
| Material Type | Plastic |
| Model Number | 30238 |
| Number of Packs | 1 |
| Number of Pieces | 3 |
| Size | 8mm |
| Unit Count | 1 Count |

## Product Details

- **Brand:** Blumat
- **Colour:** Black
- **Item dimensions L x W x H:** 5.1 x 4.6 x 4.6 centimeters
- **Material:** Plastic
- **Size:** 8mm

## Images

![8mm THROUGH-HULL TANK CONNECTOR BULKHEAD for Reservoir/Rain Barrel and Watering Systems - Image 1](https://m.media-amazon.com/images/I/51A6NaNez+L.jpg)

## Questions & Answers

**Q: this works with 1/4in tubing right?**
A: No, it's designed for the 8mm tubing that comes with Blumat kits and is the size of the tees that come with each Blumat carrot. We do have fittings though that reduce from this to 1/4."

**Q: Can I use this for drilling a hole in a 5 gallon bucket to make my own water reservoir, or do i need another connector to attach to this on the bucket**
A: This is all you should need - you unscrew the left half and it with the washer go inside the bucket, the right side on the right.

**Q: Does it come with 1 or 2 adapters?**
A: This is just the single bulk bulk-head fittings, if you buy our buckets which comes pre-drilled, those come with 2.

**Q: What size drill bit should be used?**
A: 1/2 inch, you could use a hole saw but I would prefer a unibit which can be found in the electrical section. It makes a much cleaner cut than the hole saw.

## Customer Reviews

### ⭐⭐⭐⭐⭐ Gute Wasserdurchführung
*by T***F on 27 July 2026*

Artikel wie beschrieben und hält super dicht. Anschluss und Montage klappte perfekt.

### ⭐⭐⭐⭐⭐ Très pratique pour les systèmes Blumat
*by J***E on 12 August 2026*

Raccord de bonne qualité et très pratique pour réaliser le branchement d'un réservoir avec un système Blumat. L'installation est simple et le raccord s'intègre parfaitement au système. Les connexions sont faciles à réaliser et l'ensemble semble solide et fiable. Très pratique pour automatiser l'arrosage sans avoir à raccorder directement le système au réseau d'eau. Un accessoire indispensable pour ceux qui utilisent un réservoir avec un système Blumat. Bon rapport qualité/prix, je recommande 👍

### ⭐⭐⭐⭐⭐ It seals and flows.
*by A***S on 12 December 2025*

Does exactly what I expected it to do, air flow with a tight seal, I felt it was a little small at first, but I needed not worry, I used it for air flow though, so, I cannot give advice on flow rates on water with a pump or hydrostatic head.

## Frequently Bought Together

- Blumat 30238 8mm Through-Hull Tank Connector, 8 mm
- Blumat 32102 Shut-Off Valve for 8 mm Water Systems
- Blumat Drip Feed Stroke 8 mm 10 m

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**Shop now:** [https://www.desertcart.hr/products/287219678-8mm-through-hull-tank-connector-bulkhead-for-reservoir-rain-barrel](https://www.desertcart.hr/products/287219678-8mm-through-hull-tank-connector-bulkhead-for-reservoir-rain-barrel)

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*Product available on Desertcart Croatia*
*Store origin: HR*
*Last updated: 2026-11-14*