---
product_id: 87889102
title: "12PK POLYSEAL SCREW CAPS 28/400 CT BLACK RIBBED PHENOLIC CAP WITH POLYSEAL CONE LINER FITS USA CONTINUOUS THREAD 28mm CLOSURES ON WINE BOTTLES AND BOSTON ROUNDS"
brand: "homebrew"
price: "¥4068"
currency: JPY
in_stock: true
category: "Hobby Homebrew"
url: https://www.desertcart.jp/products/87889102-12pk-polyseal-screw-caps-28-400-ct-black-ribbed-phenolic
store_origin: JP
region: Japan
---

# Superior sealing 28/400 CT Reusable design 12PK POLYSEAL SCREW CAPS 28/400 CT BLACK RIBBED PHENOLIC CAP WITH POLYSEAL CONE LINER FITS USA CONTINUOUS THREAD 28mm CLOSURES ON WINE BOTTLES AND BOSTON ROUNDS

**Brand:** homebrew
**Price:** ¥4068
**Availability:** ✅ In Stock

## Summary

> Seal the Deal! 🔒

## Quick Answers

- **What is this?** 12PK POLYSEAL SCREW CAPS 28/400 CT BLACK RIBBED PHENOLIC CAP WITH POLYSEAL CONE LINER FITS USA CONTINUOUS THREAD 28mm CLOSURES ON WINE BOTTLES AND BOSTON ROUNDS by homebrew
- **How much does it cost?** ¥4068 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.jp](https://www.desertcart.jp/products/87889102-12pk-polyseal-screw-caps-28-400-ct-black-ribbed-phenolic)

## Best For

- homebrew enthusiasts

## Why This Product

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

## Key Features

- • **Eco-Friendly Choice:** Reusable caps that contribute to a sustainable lifestyle.
- • **Rust-Resistant Design:** Say goodbye to rust; these caps maintain their integrity over time.
- • **Unmatched Sealing Power:** Experience superior torque retention with our Poly-Seal cone liner.
- • **Versatile Compatibility:** Perfectly fits USA 28/400 continuous thread bottles, including wine and Boston rounds.
- • **Durable Phenolic Material:** Crafted from high-quality black phenol, ensuring longevity and reliability.

## Overview

The 12PK Polyseal Screw Caps are heavy-duty black phenolic caps designed to fit USA 28/400 continuous thread bottles. Featuring a conical polyethylene liner for superior sealing and torque retention, these caps are reusable and rust-resistant, making them an ideal choice for wine bottles and Boston rounds.

## Description

Buy 12PK POLYSEAL SCREW CAPS 28/400 CT BLACK RIBBED PHENOLIC CAP WITH POLYSEAL CONE LINER FITS USA CONTINUOUS THREAD 28mm CLOSURES ON WINE BOTTLES AND BOSTON ROUNDS: Bottling & Corking - desertcart.com ✓ FREE DELIVERY possible on eligible purchases

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B07J47Y6MG |
| Additional Features | Leak Proof, Reusable |
| Age Range Description | Adult |
| Best Sellers Rank | #490,721 in Kitchen & Dining ( See Top 100 in Kitchen & Dining ) #470 in Wine Making Bottles & Corks |
| Bottle Type | Standard Bottle |
| Brand Name | Hobby Homebrew |
| Capacity | 1.8 Pounds |
| Color | black |
| Container Type | Screw Cap Bottle |
| Customer Reviews | 4.0 4.0 out of 5 stars (39) |
| Finish Types | Black |
| Manufacturer | Berry plastics |
| Material Type | Low Density Polyethylene |
| Number of Items | 12 |
| Product Care Instructions | Hand Wash Only |
| Recommended Uses For Product | Analytical Standards, Reagents, Distilled Water |
| Reusability | Reusable |
| Shape | Round |
| Specific Uses For Product | Analytical Standards, Reagents, Distilled Water |
| Theme | Wine |
| UPC | 705422906403 |
| Unit Count | 12 Count |

## Product Details

- **Bottle Type:** Standard Bottle
- **Brand:** Hobby Homebrew
- **Capacity:** 1.8 Pounds
- **Color:** black
- **Material:** Low Density Polyethylene

## Images

![12PK POLYSEAL SCREW CAPS 28/400 CT BLACK RIBBED PHENOLIC CAP WITH POLYSEAL CONE LINER FITS USA CONTINUOUS THREAD 28mm CLOSURES ON WINE BOTTLES AND BOSTON ROUNDS - Image 1](https://m.media-amazon.com/images/I/617iwUGDQsS.jpg)
![12PK POLYSEAL SCREW CAPS 28/400 CT BLACK RIBBED PHENOLIC CAP WITH POLYSEAL CONE LINER FITS USA CONTINUOUS THREAD 28mm CLOSURES ON WINE BOTTLES AND BOSTON ROUNDS - Image 2](https://m.media-amazon.com/images/I/71XTiSeC4NL.jpg)
![12PK POLYSEAL SCREW CAPS 28/400 CT BLACK RIBBED PHENOLIC CAP WITH POLYSEAL CONE LINER FITS USA CONTINUOUS THREAD 28mm CLOSURES ON WINE BOTTLES AND BOSTON ROUNDS - Image 3](https://m.media-amazon.com/images/I/21fS7RGpWYL.jpg)
![12PK POLYSEAL SCREW CAPS 28/400 CT BLACK RIBBED PHENOLIC CAP WITH POLYSEAL CONE LINER FITS USA CONTINUOUS THREAD 28mm CLOSURES ON WINE BOTTLES AND BOSTON ROUNDS - Image 4](https://m.media-amazon.com/images/I/515sdQFCA2L.jpg)
![12PK POLYSEAL SCREW CAPS 28/400 CT BLACK RIBBED PHENOLIC CAP WITH POLYSEAL CONE LINER FITS USA CONTINUOUS THREAD 28mm CLOSURES ON WINE BOTTLES AND BOSTON ROUNDS - Image 5](https://m.media-amazon.com/images/I/61+xgkkbK8L.jpg)

## Questions & Answers

**Q: will these fit 28 fl oz bottles?**
A: There are many different 28 fl bottles. These are 28mm and 400 thread. You need to know what the diameter and the thread are on your bottles

**Q: Will these fit a standard 750 ml screw-top wine bottle?**
A: Yes but it will not fit on any screw top bottles from wineries.

**Q: What type of plastic is the black outer screw cap made of?**
A: Phenolic

## Frequently Bought Together

- 12PK POLYSEAL SCREW CAPS 28/400 CT BLACK RIBBED PHENOLIC CAP WITH POLYSEAL CONE LINER FITS USA CONTINUOUS THREAD 28mm CLOSURES ON WINE BOTTLES AND BOSTON ROUNDS
- North Mountain Supply 28mm Gold Metal Screw Caps with Plastisol Liner - Pack of 15 Leak Proof Lids

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**Shop now:** [https://www.desertcart.jp/products/87889102-12pk-polyseal-screw-caps-28-400-ct-black-ribbed-phenolic](https://www.desertcart.jp/products/87889102-12pk-polyseal-screw-caps-28-400-ct-black-ribbed-phenolic)

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*Product available on Desertcart Japan*
*Store origin: JP*
*Last updated: 2026-08-13*