Castle Glassworks 18" Straight Tube Glass Bong – 9mm Thick Heavy Duty

Castle Glassworks 18" Straight Tube Glass Bong – Heavy Duty 9mm Construction

The Castle Glassworks 18" Straight Tube Glass Bong is built for smokers who want powerful airflow, durability, and a classic straight tube design. Crafted from heavy-duty 9mm thick borosilicate glass, this bong offers exceptional strength and stability, making it ideal for daily use and long sessions.

The tall straight tube allows smoke to travel through a larger chamber before inhalation, helping cool each draw while maintaining strong airflow. Combined with the removable downstem filtration system, this design delivers smooth, consistent hits with minimal restriction.

Key Features

• Heavy-duty 9mm thick borosilicate glass construction
• Tall 18-inch straight tube for powerful airflow
• Large 50mm tube diameter
• Removable downstem for improved filtration
• Extra-thick flat round base for stability
• Electroplated glossy finish for bold visual appeal
• Built for durability and daily use

Smooth Straight Tube Performance

Straight tube bongs are known for their direct airflow and powerful draws. The vertical design allows smoke to travel upward through the chamber, cooling slightly before reaching the mouthpiece. This produces strong, clean hits that many experienced smokers prefer.

The removable downstem diffuses smoke through water to help cool and filter each draw, improving the overall smoking experience.

Who This Bong Is Perfect For

• Smokers who prefer powerful straight tube airflow
• Collectors looking for heavy-duty thick glass bongs
• Users who want a durable daily-use bong
• Anyone seeking a large classic glass water pipe

Specifications

• Brand: Castle Glassworks
• Height: 18 inches (45.75 cm)
• Material: Borosilicate Glass
• Glass Thickness: 9 mm
• Joint Size: 19 mm Female
• Tube Diameter: 50 mm
• Downstem Length: 5.75 inches / 14.5 cm (removable)
• Design: Straight Tube
• Base: Extra-thick flat round base
• Finish: Electroplated glossy coating

How to Clean Your Bong

Regular cleaning helps maintain optimal airflow and keeps the flavor of your sessions fresh. Use a bong cleaning solution or a mixture of isopropyl alcohol and coarse salt to break down resin buildup. Rinse thoroughly with warm water before use.

Recommended Accessories

• Replacement Bong Bowls
• Downstems
• Herb Grinders
• Bong Cleaning Solutions

Discreet Shipping Across Canada

Urban Bongs ships all orders in plain, discreet packaging to protect your privacy. Each glass piece is carefully packed to ensure safe delivery anywhere in Canada.

Upgrade Your Smoking Setup

Add the Castle Glassworks 18" Straight Tube Glass Bong to your collection and enjoy powerful draws with a durable heavy-duty glass piece built for performance.

Alternate Title: Castle Glassworks | 18" Straight Tube Glass Bong – C-003 (9mm Thick)