The Yellow Multi Liquid Post Plastic Carbonation Cap is a practical and versatile brewing accessory designed to make pressure fermentation, carbonation, transfers, and dispensing easier than ever. Featuring a bright yellow finish for quick identification, this cap helps brewers instantly distinguish liquid connections from gas connections, reducing the risk of mix-ups during fermentation and kegging.

The simple colour-coding concept makes setup easier to manage. Think “Liquid Gold” and you’ll always know which port is connected to your liquid dip tube. When paired with a silicone dip tube inside a FermZilla fermenter or PET bottle, the Yellow Multi Liquid Post Plastic Carbonation Cap becomes an ideal dedicated liquid post.

Despite its colour designation, the cap remains fully compatible with both liquid and gas ball lock disconnects. Consequently, it offers maximum flexibility for brewers who wish to change configurations as required.

The Yellow Multi Liquid Post Plastic Carbonation Cap is compatible with standard PCO 1881 threaded PET bottles, including most soft drink and soda bottles, as well as FermZilla fermenters and pressure kits. This versatility makes it one of the most useful fittings to keep on hand for any home brewery or kegging setup.

In addition to pressure fermentation and carbonation, the cap can be used for a wide range of brewing applications. For example, it can assist with line cleaning systems, quick carbonation projects, pressure transfers, portable draft setups, and taking carbonated beverages to social events.

Manufactured from high-quality engineering plastic, the Yellow Multi Liquid Post Plastic Carbonation Cap is designed to withstand chemical exposure, pressure, impact, and long-term use in demanding brewing environments.

Key Features

• Bright yellow colour for easy liquid line identification
• Compatible with liquid and gas ball lock disconnects
• Suits FermZilla fermenters and pressure kits
• Fits PET bottles with PCO 1881 threads
• Ideal for pressure fermentation and carbonation
• Excellent for pressure transfers
• Durable engineering plastic construction
• Chemically resistant material
• Impact-resistant design
• Suitable for beer line cleaning systems
• Portable dispensing applications
• Long service life

Ideal Uses

Pressure Fermentation

• FermZilla pressure fermenters
• Closed fermentation systems
• Pressure transfers between vessels

Carbonation

• Carbonate beer quickly
• Carbonate sparkling water
• Carbonate soft drinks and beverages

Line Cleaning

• Build a simple line cleaning bottle
• Flush beer lines and taps
• Maintain kegerator hygiene

Portable Dispensing

• Take beer to parties and events
• Portable draft systems
• Travel-friendly beverage dispensing

Compatibility

The Yellow Multi Liquid Post Plastic Carbonation Cap is compatible with:

• FermZilla Fermenters
• FermZilla Pressure Kits
• PET Soft Drink Bottles
• Soda Bottles
• Coke Bottles
• Ball Lock Disconnects
• Kegging Systems

Durable Construction

Manufactured from high-quality engineering plastic, this carbonation cap offers:

• Excellent chemical resistance
• Long-term durability
• Impact resistance
• Reliable sealing performance
• Brewing-grade construction

Built to withstand regular use in home brewing, pressure fermentation, and dispensing applications.

Product Specifications

Product Type:
Plastic Carbonation Cap

Colour:
Yellow

Connection Type:
Ball Lock Compatible

Thread Type:
PCO 1881 (Coke Bottle Thread)

Material:
Engineering Plastic

Compatibility:
Liquid and Gas Ball Lock Disconnects

Suitable For:
PET Bottles, FermZilla Fermenters, Pressure Kits, and Kegging Systems

Important Information

Please Note: Duotight fittings shown in some product images are not included and must be purchased separately if required.

The yellow colour is designed to assist with liquid line identification but the cap remains compatible with both gas and liquid disconnects.

What’s Included

• 1 x Yellow Multi Liquid Post Plastic Carbonation Cap