
Heisenberg HNBG 5mm Glass Precooler | 18.8mm
Heisenberg 5mm Precooler | 18.8 mm
This incredible non-freezing liquid precooler by Weed Star is made from durable 5 mm thick glass and has the Heisenberg logo running up its body in gold print. The precooler is compatible with beaker base and straight tubed bongs and comes with an 18.8 mm slitted diffuser downstem with female joint. The downstem is decorated with a Heisenberg logo and comes with a perferctly fitted 18.8 mm herb bowl with male joint.
To use, simply place the ashcatcher into a freezer for 15-20 minutes to avoid any damage to the glass, then simply remove and insert the downstem and bowl and attach to any compatible bong or water pipe. As you inhale, the smoke is diffused through the downstems slits, filtered through the water and perfectly cooled by the non-freezing liquid providing a guaranteed smoother, cleaner, cooler hit.
This durable precooler bong attachment by Heisenberg is a must have for all smokers who are searching for a great ashcatcher at a great price. This ashcatcher is now available to order in the colors: blue, clear and green. Please select the color of your choice in the drop down menu when you place your order.
📦 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.



