gram hi-flo downstem diffuser close up borosilicate glass

Hi-Flo Downstem

Name: Hi-Flo Downstem
Brand: GRAM
Price: 19.0 USD
Availability: InStock

$19

Size: 18mm

18mm

Items that do not meet our strict QC standards are assigned a Grade B or lower rating.

Grade	Description	Packaging	Warranty
A	Best quality	Full	1-Year
B	Minor cosmetic defects: Light scratches or tiny inclusions	Generic	–

Grade B pieces are 100% functional with no impact on performance. Defects may include light surface scratches or small inclusions. Many do not notice unless the defects are pointed out.

Designed specifically for the Beaker 8
18mm outer joint, 14mm female connector, 5 inch length. Drop-in ready.
More Air. Less Resistance.
Larger diffuser slits and a slightly extended length deliver faster clears and an easier pull.
Showerhead Diffusion
Multi-slit showerhead design gives you smoother, cleaner hits compared to traditional downstems.
Durable Borosilicate Glass
Made from high-quality borosilicate glass for its strength, heat resistance, and lasting durability.
Backed by a 1-Year Warranty
Every Hi-Flo Downstem is covered against accidental drops, cracks, and breaks for one year.

Estimated Delivery:Sep 16 - Sep 20
Free Shipping on orders over $49

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Hi-Flo Downstem

Engineered for the pull

Smooth from the first draw

The Hi-Flo Downstem takes the showerhead design that set the standard and improves on the part that mattered most: the slits. Drop it in and feel the difference immediately.

Less Drag

Anti-Clog

Smoother Hits

Boro Glass

gram hi-flo downstem angled borosilicate glass

gram hi-flo downstem top view label borosilicate glass

SHOWERHEAD DIFFUSION

A standard downstem pushes air through a single open stem into your water. A showerhead splits that into six points of contact for more surface area, finer bubbles, and smoother hits. Same water, different experience.

WIDER SLITS. FASTER CLEARS.

Traditional showerhead slits are narrow. They diffuse well but may increase drag. The Hi-Flo's slits are more than twice the width, so air moves through with less effort. Faster clears, easier draws, and slits wide enough that they don't clog in the event of material fall through.