# GPI 28-400 aluminum-plastic cap for spirits bottles

> A GPI 28-400 screw cap made of aluminum with a PP inner, used to seal craft spirits bottles, with custom color and logo printing.

- Category: [Caps and closures](https://www.mars-glass-factory.com/products/closures/)
- Product reference: MG-1601962765630
- MOQ: 50,000 pcs
- Reference FOB price (2026-10): $0.04-0.06 per piece
- Neck finish: GPI 28-400

## Overview

This closure is a metal-shell screw cap with a PP (polypropylene) inner, built for glass spirits bottles with a GPI 28-400 neck finish. In the GPI system, 28 is the diameter in millimeters and 400 indicates a shallow single-turn thread, a common finish for liquor and sauce bottles. The listing describes the cap as non-refillable.

The cap is aimed at craft distilleries that want a branded closure. Cap color is made to order and your logo can be added. Caps are packed 1,200 pcs per carton. Delivery time is 30–45 days, payment is by T/T, production is ISO 9001 certified, and the minimum order is 50,000 pcs. Samples can be arranged to check fit on your bottles before the order.

## Key points

- Fits GPI 28-400 bottle finishes
- Aluminum shell with PP inner
- Non-refillable design
- Custom color and logo
- 30–45 day delivery

## Specifications

| Property | Value |
| --- | --- |
| Type | Screw cap (GPI 28-400) |
| Material | Aluminum with PP inner |
| Feature | Non-refillable |
| Use | Spirits bottles |
| Color | Custom |
| Logo | Custom logo accepted |
| Certification | ISO 9001 |
| Packing | 1,200 pcs/carton |
| Delivery time | 30–45 days |
| Payment | T/T |
| MOQ | 50,000 pcs |
| Origin | Shanghai, China |

## FAQ

**Which bottle neck does this cap fit?**

It is made for a GPI 28-400 finish. Send your bottle drawing and we confirm compatibility before production.

**What is the MOQ and lead time?**

The minimum order is 50,000 pcs and delivery time is 30–45 days.

**Can the cap carry our brand?**

Yes. Cap color is made to order and your logo can be added to the cap.


Request a quote: https://www.mars-glass-factory.com/products/closures/gpi-28-400-aluminum-plastic-spirits-bottle-cap/#inquiry or email inquiry@mars-glass-factory.com