5.75" Downstem - 9 Hole - Product Specifications
 
Length: 5.75 inches / 14.5 cm
Properly sized to reach the water in the beaker base without being too long or too short
Important measurement if you need a replacement - measure your current downstem first
Universal for all Castle Glassworks beakers and accessories
 
Joint Size: 19mm Male / 14mm Female
19mm Male end inserts in your bong's female joint
19mm Female end Receives your bowl
Male end goes in, female end goes over
 
Diffusion: 9-Hole Design
Nine precision-drilled holes at the bottom of the downstem
Each hole creates multiple bubbles when you inhale
Breaks smoke into tiny bubbles for maximum water contact
Outstanding filtration that cools and smooths every hit
 
Material: Colored Borosilicate Glass
Premium borosilicate glass known for strength and heat resistance
Available in multiple vibrant colors (green, purple, blue, pink, grey, etc.)
Eye-catching bright colors add personality to your setup
 
Logo: Heat-Bonded
Durable bonding that withstands use and cleaning
 
Water Level Guidelines:
Ensure all nine holes are fully submerged in water
Typically about 1 inch above the 9 holes
Too much water causes splash-back
Too little water means holes won't diffuse properly
 
Cleaning & Maintenance:
Soak in glass cleaning solution
Use pipe cleaners if needed to clear the nine holes
Rinse thoroughly with warm water after soaking
Regular cleaning prevents buildup in holes
 
Best For:
Anyone wanting smoother, cooler hits
Beginners who find regular hits too harsh
Upgrading from a open-ended downstem
Daily smokers who value easy cleaning and durability
 
Why These Specs Matter: This 9-hole downstem is the sweet spot for filtration without sacrificing airflow. Whether you're a beginner finding regular hits too harsh or an experienced smoker wanting an upgrade, this downstem provides outstanding filtration that you'll notice immediately. It's the perfect balance of performance, durability, and easy maintenance!