TAG - 18/14MM Open End 32 Slit Gridded Bong Downstem

TAG – 18/14MM Multiplying Rod Downstem (Open End)

Classic Beaker Feel. Engineered Precision. Premium Airflow.

This TAG Multiplying Rod Downstem blends classic diffusion with refined engineering.
Each of its 8 precision-cut slits is reinforced by 3 multiplying rods, dividing each slit into 4 openings for a total of 32 airflow paths. The result — wide, even diffusion that maintains the smooth pull and chug that many prefer in traditional beaker setups.

The open-end design provides full, unrestricted airflow when clearing a hit and allows debris to pass through easily, helping prevent clogging and making cleaning simple.

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Key Features

• 🔬 8-Slit Grid Design (32 Total Openings) – Each slit is supported by multiplying rods that split airflow evenly for balanced diffusion and a classic beaker draw.

• 💨 Open-End System – Delivers unrestricted airflow for quick clears and natural chug, while helping debris exit freely.

• ⚙️ 18/14MM Joint Fit – Fits 18MM female joints on beakers and straight tubes, and accepts a 14MM male slide.

• 🧱 Handcrafted Borosilicate Glass – Thick, durable glass built for daily use and long-term reliability.

• ✴️ Laser Engraved Logo – Permanent, solvent-safe marking — cleaner and safer than printed color labels.

• 💎 Refined Scientific Aesthetic – A clean, engineered look with a diffusion layout inspired by high-end scientific glass.

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Downstem Measurement Note

Each TAG downstem is handmade and measured by insert length (the portion that sits inside your piece).
Small variances are normal due to handcrafted production. Always confirm your beaker’s fitment before ordering a replacement.
👉 Downstem Sizing & Measurement Guide

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Why You’ll Love It

Designed for enthusiasts who love a little classic beaker feedback, this downstem offers the perfect middle ground between resistance and smoothness. The wider slit cuts produce a satisfying rumble without sacrificing performance, and the open-end design ensures smooth airflow and easy clearing — a TAG classic that never disappoints.

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Made To Order (MTO)

Looking for a specific joint style or variation?
TAG’s Made To Order program allows for custom configurations across most downstem designs.
👉 Made To Order (MTO)

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Optional 2-Year Warranty

Protect your investment with TAG’s 2-Year Warranty Plan — if it breaks, we replace it once (just pay shipping).
👉 Warranty Protection Plan