TAG - 12" Straight Tube Bong 44x4MM - 18/14MM Downstem (3.50")

This 12 inch straight tube water pipe is a clean, no-nonsense daily driver built on 44MM diameter tubing with 4MM walls. The straight-tube form keeps the water column directly under the neck for a fast, open draw, and the removable downstem makes cleaning and swapping parts straightforward. It ships with a matching 18/14MM diffusing downstem measuring 3.50 inches, so the 18MM female joint on the pipe accepts the downstem's 18MM male end, and the downstem's 14MM female end takes the included 14MM male glass slide (bowl).

The downstem is a replaceable part, and its length can vary about a quarter inch. If you ever need a new one, measure from the end of the frosted joint to the tip before ordering. At 4MM this is a lighter, more affordable build, so treat the joint and stem with care and avoid putting side stress on the downstem. The Sandblasted Logo option is a permanent etched mark, while colored labels can fade with repeated solvent cleaning. Choose your label finish from the variant list.

Care: avoid thermal shock. No boiling or freezing water, let the glass reach room temperature between temperatures, and never torch the glass. Included accessories are often taped inside the bubble wrap, so check the packaging thoroughly.

• Type: Straight tube water pipe (removable downstem)
• Joint size: 18MM female, accepts 14MM male slide via included 18/14MM downstem
• Downstem: 18/14MM, 3.50"
• Glass thickness: 44MM tube with 4MM walls
• Height: 12" (slight variance)
• Included: Matching glass slide

Downstem Fitment Note

Insert lengths can vary slightly between units (±¼–½"). When purchasing replacements, always measure your insert length first.

See the 👉 Downstem Sizing & Measurement Guide.

Made To Order (MTO)

Want a specific color, label, or joint style? TAG offers a long-standing Made To Order program for custom configurations and restock requests.

Learn more at 👉 Made To Order (MTO) or email info@thickassglass.com with your request.

Free 2-Year Limited Warranty

Qualifying 1st Quality TAG glass purchased from thickassglass.com or shop.thickassglass.com on or after October 15, 2026 includes a Free 2-Year Limited Warranty. One eligible replacement within two years after delivery is 65% off MSRP (you pay 35% of MSRP), plus shipping & handling. Quartz, lower-grade items and other brands are excluded. Full warranty terms and earlier paid-plan coverage.