Metal Bonza Stem Kit 20cm

Details: Metal Bonza Stem Kit 20cm

The famous Bonza is the world’s number one aluminum alloy stem brand, highly trusted within the professional tobacco community. And the Metal Bonza Stem Kit 20cm is one of its flagship products. Easy to assemble and clean, super durable and lightweight metal material are the standout features of this kit.

With a stem length of 20cm, combined with a premium copper-plated 14mm cone and sturdy rubber grommet, it seamlessly pairs with various common bongs such as ceramic or glass bongs. Except for the rubber grommet, both the stem and cone are precision machined on advanced CNC machines, with powder-coated finish for corrosion resistance. Distributed directly by BONGSnPIPES in Australia, purchase now to enjoy discounts and free shipping for orders over $150.

How to determine the size of the Bonza stem kit?

A Bonza stem kit consists of three main components: the stem, grommet, and cone pieces. Remember that the genuine Bonza stem has a diameter of 15mm, with the length being adjustable. All types of Bonza cone pieces and grommets fit the stem from the manufacturer. In case you want to use accessories from other brands, remember the following standard sizes:

• Stem diameter: 15mm outer, and 14mm inner;
• Grommet outer diameter (where it connects to the bong): 22mm;
• Grommet inner diameter (connects to the stem): 15mm;

After determining these sizes, to choose the right Bonza stem kit for your bong, measure the following:

• Stem total length: the total length of the metal stem;
• Stem inner length: the length of the stem inside the bong;
• Stem outer length: the length of the stem outside the bong;

Although the stem’s outer length can be adjusted, for functionality and aesthetics, it’s best to keep it within a reasonable range (10 to 20mm). The inner length of the stem is more critical and must ensure contact with the base of the bong (or higher by 5-10mm).