
Heisenberg Glass Precooler with Showerhead Diffuser
Heisenberg Glass Precooler with Showerhead Diffuser | 18.8mm
This clear glass Heisenberg precooler is equipped with a fixed showerhead diffuser and an 18.8mm male joint that connects with any bongs 18.8mm ground joint. The precooler can connect with any 18.8mm male herb bowl and does a great job of keeping unwanted ash and debris from traveling into your bong while adding important cooling and filtration to any compatible bong set-up.
The precooler measures 16 cm / 6.5 inches in height, has a stable, flat base and is decorated with Heisenberg decal on its body. The bubbly smoke is separated and filtered as its pulled through the submerged slits in the fixed showerhead diffuser. The smoke then swirls and cools in the bubble chamber all before it reaches your bong. This process results in a smoother hit thats still packed full of flavor but less harsh on the throat and lungs. This solid precooler is constructed from durable glass and has a reinforced joint for added strength.
This affordable Heisenberg precooler adds important cooling and filtration, is easy to clean and will last for years if looked after correctly. Check out our extensive range of precoolers, accessories and attachments available to order online today at GrasscityShop US.com.
📦 100% Plain & Discreet Packaging
100% plain and discreet packaging in unmarked cardboard boxes with neutral sender details. Zero mention of smoke or glass on the outside.
🚚 Dispatch & Delivery Timelines
Orders received on business days before 12:00 PM are queued for same-day packing. Domestic delivery typically arrives in 2–4 business days via USPS Priority Mail or UPS Ground.
🛡️ 30-Day Return Policy
30-day return policy for unused, unopened items in original packaging. Return shipping is covered by the customer unless damaged on arrival.
For borosilicate glass bongs and pipes, use 91%+ isopropyl alcohol combined with coarse sea salt as a gentle abrasive. Swirl gently for 2–3 minutes.
Rinse thoroughly with lukewarm water until completely odorless. Never shock hot glass with ice water to avoid thermal micro-cracking.
Soak smaller glass accessories in a sealable bag with alcohol and rinse weekly to maintain optimal percolation and clean airflow.



