Growler Caps 16 Pcs 28mm Phenolic Black Bottle Lids by Mezfrguo

Description

Product Overview

The Mezfrguo 16‑piece grower cap set is engineered for precision sealing in demanding laboratory and industrial environments. Each cap measures 28mm in diameter, matching standard bottle mouth sizes used for chemicals, essential oils, and cosmetics. The caps are constructed from a high‑performance polyethylene (PE) core with a polypropylene (PP) outer layer, delivering exceptional corrosion resistance and chemical compatibility. The phenolic composition provides a hard, durable surface that resists wear, abrasion, and impact, ensuring a long service life even under frequent handling.

Designed with a cone‑type insertion mechanism, the caps create a tight, leak‑proof seal that prevents both liquid spillage and gas escape. The anti‑slip texture on the exterior surface increases friction, allowing users to screw the caps on quickly and securely without excessive torque. The black finish not only offers a professional appearance but also helps conceal any residue or staining that may occur during routine use. With a total weight of 1.92 ounces for the entire set, the caps are lightweight yet robust, making them easy to store and transport.

Technical specifications include a hole count of 16, an unfinished finish for versatility, and a mounting type classified as a growler cap. The product dimensions of 1.22″ L x 0.51″ W provide a compact footprint that fits neatly into standard laboratory storage cabinets. The caps are compatible with a wide range of bottle materials, including glass, plastic, and certain metal containers, expanding their applicability across multiple sectors. The model number CM008 identifies this specific configuration within the Mezfrguo catalog, ensuring accurate ordering and inventory management.

Customer feedback highlights a perfect rating of 5.0 stars from four reviews, emphasizing the caps’ reliable sealing performance and ease of use. Ranked #29 in Labware Caps on Amazon, the product demonstrates strong market acceptance and visibility. The caps were first made available on May 29, 2024, and have since become a trusted component for professionals seeking dependable bottle sealing solutions.

Usage

These growler caps are ideal for sealing bottles that contain daily chemicals, laboratory samples, essential oils, and cosmetic formulations. In research laboratories, the caps protect volatile compounds from evaporation and maintain sample integrity during storage and transport. For industrial applications, they secure containers of cleaning agents, solvents, and reagents, preventing accidental spills and exposure to hazardous vapors.

In the cosmetics industry, the caps provide a hygienic closure for serums, oils, and specialty creams, preserving product freshness and extending shelf life. The anti‑slip design ensures that technicians can quickly open and close bottles even when wearing gloves, enhancing workflow efficiency. The caps also serve well in educational settings, where students handle a variety of chemicals and need reliable containment to ensure safety.

Because the caps are made from chemically inert materials, they do not react with acidic or alkaline solutions, making them suitable for a broad spectrum of formulations. The black coloration helps mask any staining from colored liquids, maintaining a clean visual presentation. Users can confidently employ these caps in environments ranging from high‑throughput manufacturing lines to small‑scale boutique laboratories.

Why Choose Us

Mezfrguo is committed to delivering high‑quality laboratory accessories that meet rigorous industry standards. Our growler caps undergo strict quality control processes, including dimensional verification, material testing, and seal integrity assessments, to guarantee consistent performance across every batch. The combination of PE and PP materials offers a unique balance of flexibility and strength, ensuring that the caps can accommodate slight variations in bottle threads while maintaining a secure seal.

We provide responsive customer support and a clear return policy, giving buyers confidence that any issues will be addressed promptly. Our dedication to continuous improvement means we regularly incorporate user feedback into product refinements, resulting in caps that evolve with the needs of modern laboratories and industrial users. By choosing Mezfrguo, you benefit from a trusted brand with a proven track record of reliability, durability, and customer satisfaction.

Key Features

• Corrosion‑resistant PE/PP construction ensures long‑term durability
• Anti‑slip cone design provides effortless, secure fastening
• 28mm standard size fits a wide range of bottle types and applications
• Black finish hides stains and offers a professional appearance
• Responsive after‑sales support and easy replacement policy

FAQ

What bottle sizes are compatible with these caps?

The caps are designed for bottles with a 28mm mouth diameter, which includes many standard glass and plastic containers used for chemicals, essential oils, and cosmetics.

Are the caps suitable for acidic or alkaline solutions?

Yes, the PE core and PP outer layer are chemically inert and can safely seal both acidic and alkaline liquids without degradation.

How many caps are included in the package?

The package contains 16 individual caps, providing ample supply for multiple bottles or replacement needs.

Can the caps be reused after opening?

Absolutely. The durable materials allow the caps to be removed and re‑installed many times while maintaining a reliable seal.

Do you offer bulk ordering options?

Yes, Mezfrguo provides bulk purchasing arrangements for larger quantities, and you can contact our sales team for pricing and availability.