---
product_id: 101870389
title: "Rubber Grommet 1/2 Inch, Hydro Rubber Grommet Donut Type to make Waterproof Seal in DIY Hydroponic Systems and 16mm or 1/2 Inch Barbed Elbow Tee Straight Y Connector and Vinyl Tubing (Pack of 25)"
brand: "hortipots"
price: "123.20 DT"
currency: TND
in_stock: true
reviews_count: 10
category: "Hortipots"
url: https://www.desertcart.tn/products/101870389-rubber-grommet-1-2-inch-hydro-rubber-grommet-donut-type
store_origin: TN
region: Tunisia
---

# 100% waterproof seal Fits 1/2 inch tubing & connectors Durable rubber for long-lasting use Rubber Grommet 1/2 Inch, Hydro Rubber Grommet Donut Type to make Waterproof Seal in DIY Hydroponic Systems and 16mm or 1/2 Inch Barbed Elbow Tee Straight Y Connector and Vinyl Tubing (Pack of 25)

**Brand:** hortipots
**Price:** 123.20 DT
**Availability:** ✅ In Stock

## Summary

> 💧 Seal the deal with leak-proof confidence!

## Quick Answers

- **What is this?** Rubber Grommet 1/2 Inch, Hydro Rubber Grommet Donut Type to make Waterproof Seal in DIY Hydroponic Systems and 16mm or 1/2 Inch Barbed Elbow Tee Straight Y Connector and Vinyl Tubing (Pack of 25) by hortipots
- **How much does it cost?** 123.20 DT with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.tn](https://www.desertcart.tn/products/101870389-rubber-grommet-1-2-inch-hydro-rubber-grommet-donut-type)

## Best For

- hortipots enthusiasts

## Why This Product

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

## Key Features

- • **Leak-Proof Hydro Seal:** Ensure zero drip with precision donut-shaped grommets designed for flawless water and nutrient transfer.
- • **Effortless Installation:** Push-and-seal design with optional soap/oil lubrication for quick, hassle-free assembly in any reservoir.
- • **Heavy-Duty Rubber Durability:** Replace worn grommets with premium rubber that withstands pressure and prevents air or water leaks.
- • **Bulk Pack for Pro-Level Projects:** 25-piece set keeps your hydroponic or irrigation system running smooth without frequent replacements.
- • **Perfect Fit for 1/2 Inch Systems:** Optimized for 16mm/1/2 inch barbed elbows, tees, and vinyl tubing for seamless DIY hydroponic setups.

## Overview

This pack of 25 Hydro Rubber Grommet Donuts offers a watertight, durable seal for 1/2 inch tubing and barbed connectors, ideal for DIY hydroponic, aquaponic, and irrigation systems. Designed for easy installation and long-lasting performance, these black rubber grommets prevent leaks and maintain system integrity, making them a must-have for any serious grower or irrigation pro.

## Description

Drill the right size hole on the reservoir and push rubber grommet in; then, insert the pipe or connectors. Be sure grommet's groove is fully inserted into the drilled hole. If you have trouble with connection, please use soap or oil on the Barbed Elbow, Barbed Tee, Barbed Straight, Barbed Y Connector or PVC pipe to slide through drilled hole on the bucket or tank easier.

Review: Perfect - Heavy duty, better than a normal grommet
Review: Check the sizing charts! - These things are perfect for the function! find the chart the company produces for size of hole/grommet/pipe you'll be using to make sure you're purchasing the right size. these smaller ones worked great and didnt require any extras to install nicely. They've been running for months now and i havent seen a single leak!

## Features

- WATER TIGHT Rubber Grommets: in connections of DIY hydroponic systems, dutch buckets, dripping systems, siphon aquaponic systems and irrigation systems…
- LEAK-FREE SEAL: Donut-shaped Rubber Grommets help transfer water or nutrient solution from one reservoir to another one with tubing and barded fittings or piping and 1/2 Inch Vinyl Tubing
- DURABLE: periodically replace worn old ones in existing dripping or hydroponic systems to ensure air and water tight seals in your systems
- It goes with barded connector fittings; then, connector goes with Vinyl tubing, hose or poly drip line of same size
- The inner diameter of rubber grommet is 1/2 inch but the drilled hole on the bucket it fits into will need to be 13/16 inch~7/8 Inch

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B07M9VPRQY |
| Best Sellers Rank | #59,309 in Industrial & Scientific ( See Top 100 in Industrial & Scientific ) #287 in Grommet Kits |
| Brand Name | HORTIPOTS |
| Color | Black |
| Connector Type | Elbow |
| Customer Reviews | 4.7 4.7 out of 5 stars (288) |
| Item Dimensions | 0.6 x 1 x 1 inches |
| Item Weight | 0.01 Ounces |
| Manufacturer | HortiPots |
| Material Type | Rubber |
| Number of Pieces | 25 |
| Size | 1/2 inch grommet |
| Thread Type | NPT |
| UPC | 791261174011 |
| Unit Count | 1 Count |

## Product Details

- **Brand:** HORTIPOTS
- **Color:** Black
- **Connector Type:** Elbow
- **Item Weight:** 0.01 Ounces
- **Item dimensions L x W x H:** 0.6 x 1 x 1 inches
- **Manufacturer:** HortiPots
- **Material:** Rubber
- **Number of Pieces:** 25
- **Size:** 1/2 inch grommet
- **Thread Type:** NPT

## Images

![Rubber Grommet 1/2 Inch, Hydro Rubber Grommet Donut Type to make Waterproof Seal in DIY Hydroponic Systems and 16mm or 1/2 Inch Barbed Elbow Tee Straight Y Connector and Vinyl Tubing (Pack of 25) - Image 1](https://m.media-amazon.com/images/I/51lY8zJyaZL.jpg)
![Rubber Grommet 1/2 Inch, Hydro Rubber Grommet Donut Type to make Waterproof Seal in DIY Hydroponic Systems and 16mm or 1/2 Inch Barbed Elbow Tee Straight Y Connector and Vinyl Tubing (Pack of 25) - Image 2](https://m.media-amazon.com/images/I/51Epwrds4+L.jpg)
![Rubber Grommet 1/2 Inch, Hydro Rubber Grommet Donut Type to make Waterproof Seal in DIY Hydroponic Systems and 16mm or 1/2 Inch Barbed Elbow Tee Straight Y Connector and Vinyl Tubing (Pack of 25) - Image 3](https://m.media-amazon.com/images/I/61xxWHIsUfL.jpg)
![Rubber Grommet 1/2 Inch, Hydro Rubber Grommet Donut Type to make Waterproof Seal in DIY Hydroponic Systems and 16mm or 1/2 Inch Barbed Elbow Tee Straight Y Connector and Vinyl Tubing (Pack of 25) - Image 4](https://m.media-amazon.com/images/I/51kbTJnyc6L.jpg)
![Rubber Grommet 1/2 Inch, Hydro Rubber Grommet Donut Type to make Waterproof Seal in DIY Hydroponic Systems and 16mm or 1/2 Inch Barbed Elbow Tee Straight Y Connector and Vinyl Tubing (Pack of 25) - Image 5](https://m.media-amazon.com/images/I/61+4iDUprML.jpg)

## Questions & Answers

**Q: What size pvc pipe can be used in a 1/2 inch rubber grommet?**
A: 1/2 inch pvc

**Q: I see drill 3/4 or 13/16 size hole?    Which is it?   I need to know exactly what is going to be the 'best' to thwart leaking.**
A: hole drilled during 3/4''~13/16'' diameter proves work all right without water leaking, thank you.

**Q: what is the actual all over size of this grommet?**
A: Roughly 3/4"ish

**Q: What's range for the wall thickness these will snuggley work with?**
A: The groove is 3/16 inch, so the wall of your container shall be smaller than it, thanks.

## Customer Reviews

### ⭐⭐⭐⭐⭐ Perfect
*by B***. on August 28, 2025*

Heavy duty, better than a normal grommet

### ⭐⭐⭐⭐⭐ Check the sizing charts!
*by L***D on September 9, 2025*

These things are perfect for the function! find the chart the company produces for size of hole/grommet/pipe you'll be using to make sure you're purchasing the right size. these smaller ones worked great and didnt require any extras to install nicely. They've been running for months now and i havent seen a single leak!

### ⭐⭐⭐⭐⭐ Works
*by S***E on March 13, 2026*

Work fantastic. No leaks

## Frequently Bought Together

- Rubber Grommet 1/2 Inch, Hydro Rubber Grommet Donut Type to Make Waterproof Seal in DIY Hydroponic Systems and 16mm or 1/2 Inch Barbed Elbow Tee Straight Y Connector and Vinyl Tubing (Pack of 25)
- Rubber Grommets 3/4 Inch ID, Donut Rubber Grommet Ring drilled 1 1/8 Inch Hole Using SCH40 1/2 inch Hydroponic PVC Pipe and 25mm or 3/4 Inch Barbed Elbow Tee Straight Y Connector (Pack of 25)
- HORTIPOTS 1 Inch Rubber Grommet 25 Pack, Replacement Rubber Grommet to Drill 1.5 Inch Hole Using with SCH40 3/4 inch Hydroponic PVC Pipe in DIY Hydroponic Set Up (Pack of 25)

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*Product available on Desertcart Tunisia*
*Store origin: TN*
*Last updated: 2026-06-02*