TAG - 20" Double Fixed 16 Arm Tree Beaker Bong 50x7MM - 28/18MM Downstem (4.50")
TAG – 21" Fixed Double 16 Arm Tree Beaker 50×7MM – 28/18MM Downstem
Massive Diffusion. High Airflow. Engineered Strength.
The TAG 21" Fixed Double 16 Arm Tree Beaker is built for serious function and heavy-duty performance. Featuring two welded 16-arm tree percs, this towering piece delivers ultra-smooth diffusion with surprisingly low drag — a hallmark of TAG’s precision airflow engineering. The upgraded 28/18MM downstem system enhances versatility, allowing for larger diffuser compatibility and easier cleaning.
Key Features
🌲 Dual 16-Arm Tree Percs – Two stacked tree diffusers, each fixed securely to the chamber base for reduced vibration and long-term durability.
💨 High Airflow Design – Despite the dual perc system, airflow remains open and unrestricted, providing fast clears and smooth diffusion.
🧱 50×7MM Borosilicate Glass – Thick, heavy construction with excellent balance and stability.
⚙️ 28/18MM Downstem System – Larger joint size accommodates advanced diffuser designs like Super Slit or Double UFO styles for improved function.
❄️ Ice Pinches – Allow for optional cooling without limiting airflow.
🪶 Chamfered Beaker Edge – TAG’s signature beveled base increases durability and resistance against tip-over impacts.
Performance Overview
Unlike typical multi-perc designs that restrict airflow, this double tree beaker is engineered for smooth, efficient diffusion. The fixed 16-arm trees provide balanced stacking and reduced drag, while the 28MM joint system adds cleaning access and compatibility with larger diffuser styles. The result is powerful function, impressive stability, and effortless use — a high-capacity piece that performs beyond expectation.
Downstem Fitment Note
Minor variation in joint depth may occur (±¼–½").
Always measure your current downstem’s insert length before ordering a replacement.
👉 TAG Downstem Sizing & Measurement Guide
Made To Order (MTO)
Looking for a specific logo, color accent, or variant configuration?
TAG’s Made To Order program allows you to request nearly any version from our catalog.
👉 Learn More – Made To Order (MTO)
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.