---
product_id: 473740520
title: "7.9G Mason Jar Adaptor"
price: "Rp1107718"
currency: IDR
in_stock: true
url: https://www.desertcart.id/products/473740520-7-9g-mason-jar-adaptor
store_origin: ID
region: Indonesia
---

# 7.9G Mason Jar Adaptor

**Price:** Rp1107718
**Availability:** ✅ In Stock

## Quick Answers

- **What is this?** 7.9G Mason Jar Adaptor
- **How much does it cost?** Rp1107718 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.id](https://www.desertcart.id/products/473740520-7-9g-mason-jar-adaptor)

## Best For

- Customers looking for quality international products

## Why This Product

- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Description

7.9G Mason Jar Adaptor

## Product Details

- **Brand:** FastRack
- **Color:** Grey
- **Capacity:** 30 Liters
- **Product Dimensions:** 4"L x 4"W x 4"H
- **Special Feature:** Shatterproof

## Images

![7.9G Mason Jar Adaptor - Image 1](https://m.media-amazon.com/images/I/81GFWdSTeDL.jpg)

## Questions & Answers

**Q: Do we get both pieces in the picture?**
A: Yes it includes both pieces. I mentioned to Fast Brewing that they should show a picture of this adapter on the conical. The small end of the bigger piece screws on the conical port. Small mouth Mason jar or the hose adapter shown screws into the adapter. The seal seemed a bit small so I put it in hot water before I could get to fit in the recess in the adapter. It seals well now. Found even some glass spaghetti sauce jars will fit.

**Q: Does this replace the collection ball and connect directly to the conical flask?**
A: It replaces the collection ball and allows you to use a mason jar as a collection jar. It allows you to see what is getting collected. I like mine and use it on both my 7.9 gal conical and am getting one for my 14 gal conical.

**Q: The adapter I received is leaking like a sieve. Does the gasket go right next to the jar rim?**
A: Need full size gasket , silicon mason jar lid will work. Cut hole in center for drainage. Supplied gasket doesn't fit.

**Q: Does it fit the 3g or is there a different part?**
A: This does not fit the 3 gallon fermenter.

## Frequently Bought Together

- FastFerment 7.9G Mason Jar Adaptor
- FASTFERMENT 7.9G Valve Only
- FASTFERMENT - FastFerment 7.9G CBall FastFerment Yeast Harvesting Collection Ball - No More Sediment Contamination! Flat Bottomed Design for Your Home-Brew kit. Rubber Bung and Teflon Tape Included (Collection Ball 7.9 Gallon)

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**Shop now:** [https://www.desertcart.id/products/473740520-7-9g-mason-jar-adaptor](https://www.desertcart.id/products/473740520-7-9g-mason-jar-adaptor)

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*Product available on Desertcart Indonesia*
*Store origin: ID*
*Last updated: 2026-02-25*