HiSi Glass | Angies Boutique LA

HiSi Glass at Angies Boutique — scientific borosilicate water pipes, beakers, straight tubes, perc tubes, ashcatchers, and downstems from the HiSi brand. Over 45 HiSi pieces, stocked at 838 N Broadway in Los Angeles and shipped nationwide.

HiSi beakers and straight tubes — 12" to 14"+ with Jr. Double Bell, Double U, and Triple Bell percolators
HiSi perc tubes — Stemless Double Geyser and engineered diffusion designs
HiSi ashcatchers and downstems — 14mm and 18mm, sized to match HiSi tubes
Authorized HiSi Glass retailer at Angies Boutique since the brand launched

HiSi Glass is a scientific-glass brand known for clean borosilicate construction and engineered percolators — the Jr. Double Bell, Double U, and Triple Bell perc systems that define the line. HiSi builds for function and durability: thick 44x4mm tubing, predictable airflow, and percolators designed to diffuse smoke without excessive drag.

Angies Boutique carries the HiSi range across beakers, straight tubes, perc tubes, ashcatchers, and downstems. The beaker and straight-tube lineup runs from 12" through 14" and up, in plain and multi-perc configurations. HiSi ashcatchers and downstems are sized to match HiSi tubes but fit standard 14mm and 18mm joints across other brands. HiSi sits in the scientific-glass tier alongside Illadelph and Mobius Glass.

The HiSi Glass collection at Angies Boutique includes beakers (the 12" Beaker, 12" Jr. Double Bell Perc 2.0 Beaker, 13" Jr. Double U Perc Beaker, 14" Jr. Triple Bell Perc 2.0 Beaker), straight tubes (12" Straight, 14" Jr. Double Bell Perc 2.0 Straight), the 10" Stemless Double Geyser perc tube, plus HiSi ashcatchers (14mm 45°) and the full HiSi downstem range in 3.0" through 6.0" lengths.

The HiSi 12" Beaker is the everyday benchmark — clean borosilicate, stable base, standard joint. The HiSi 12" Jr. Double Bell Perc 2.0 Beaker is the percolator step-up — engineered diffusion in thick 44x4mm glass. The HiSi 10" Stemless Double Geyser is the perc-tube pick.

HiSi pieces use standard 14mm and 18mm joints — verify the joint size before pairing with an aftermarket bowl, banger, or downstem. The engineered percolators have finer channels than a plain tube, so clean them regularly with Formula 420 or a soak formula from the Cleaning Supplies collection. For HiSi ashcatchers and downstems specifically, see Ash Catchers and Downstems.

Start with the HiSi 12" Beaker, read the iso-cleaning guide, and compare against Scientific Glass for the full scientific range.

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HiSi 14mm Male Drain Bowl — slide bowl with built-in drain holes for clean ash management on water pipes

HiSi - Drain Bowl - 14mm Male

$44.99

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HiSi Glass 7 inch Stemless Hex Geyser bong with 18mm male joint

HiSi - 7" Stemless Hex Geyser

$239.99

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HiSi Glass 10in Stemless Double Geyser — 10in stemless double geyser perc dab rig

HiSi - 10" Stemless Double Geyser

$319.99

HiSi 3.5in Downstem — borosilicate glass diffused downstem for 14mm or 18mm joint water pipes

HiSi - 3.5" Downstem

$39.99

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HiSi Glass 13 inch Jr Double U Perc Beaker 44x4mm bong with 14mm female joint

HiSi - 13" Jr. Double U Perc Beaker - 44x4mm

$308.99

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HiSi 5.0in Downstem — borosilicate glass diffused downstem for 14mm or 18mm joint water pipes

HiSi - 5.0" Downstem

$42.99

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HiSi Glass 23 inch Triple Geyser Perc 50x5mm tall bong with 18mm female joint

HiSi - 23" Triple Geyser Perc - 50x5mm

$517.99

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HiSi Glass 18 inch Double Geyser Perc 50x5mm bong with 18mm female joint

HiSi - 18" Double Geyser Perc - 50x5mm

$472.99

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HiSi Glass 12 inch Jr Double Bell Perc 2.0 Beaker 44x4mm bong with 14mm female joint

HiSi - 12" Jr. Double Bell Perc 2.0 Beaker - 44x4mm

$261.99

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HiSi Glass 15 inch Straight Tube 50x5mm bong with 14mm female joint

HiSi - 15" Straight - 50x5mm

$179.99

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HiSi Glass 15 inch Beaker 50x5mm bong with 14mm female joint

HiSi - 15" Beaker - 50x5mm

$169.99

HiSi - Drain Bowl - 14mm Female

$59.99

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HiSi 3.0in Downstem — replacement glass downstem, 3 inch

HiSi - 3.0" Downstem

$35.99

HiSi 16in Jr Triple Bell Perc 2.0 Straight 44x4mm — straight tube bong with triple bell percs, hero shot

HiSi - 16" Jr. Triple Bell Perc 2.0 Straight - 44x4mm

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HiSi - 14mm Hex Ashcatcher 45°

$130.99

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HiSi 14mm 90deg Ashcatcher — borosilicate glass ashcatcher attachment with 90-degree joint angle for water pipes

HiSi - 14mm Ashcatcher 90°

$124.99

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HiSi 14mm 45deg Ashcatcher — borosilicate glass ashcatcher attachment with 45-degree joint angle for water pipes

HiSi - 14mm Ashcatcher 45°

$124.99

HiSi 21in Triple U Perc Straight Tube — 50x5mm thick borosilicate bong with triple U-shaped percolators

HiSi - 21" Triple U Perc Straight - 50x5mm

$449.99

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HiSi 16in Geyser Perc Straight Tube — 50x5mm thick borosilicate glass bong with geyser percolator, front view

HiSi - 16" Geyser Perc Straight - 50x5mm

$293.99

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HiSi 14mm Male Crosshair Bowl — glass slide bowl with crosshair-pattern screen for clean ash management

HiSi - Crosshair Bowl - 14mm Male

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HiSi - 5" Shower Bubbler

$219.99

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HiSi Glass 7 inch Mini Beaker bong with 14mm female joint

HiSi - 7" Mini Beaker

$159.99

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HiSi Glass 6 inch Mini Beaker Bent neck bong with 14mm female joint

HiSi - 6" Mini Beaker - Bent

$171.99

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HiSi Glass 6 inch Halo Bubbler mini dab rig with 14mm female joint

HiSi - 6" Halo Bubbler

$171.99

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Frequently Asked Questions about HiSi Glass

What makes HiSi Glass different from other scientific brands?

HiSi uses thick 44x4mm tubing across its main lineup, which gives the pieces extra weight and durability. The brand's Jr. Double Bell, Double U, and Triple Bell percolators are engineered for dense, even diffusion. HiSi sits in the same scientific tier as Illadelph and Mobius but at a slightly more accessible price point.

What size HiSi piece is best for daily use?

A 12 inch HiSi Beaker or 12 inch Jr. Double Bell Perc 2.0 Beaker is the standard daily-driver size — large enough for smooth, cooled hits, small enough to handle and clean easily. The 14 inch Jr. Triple Bell Perc 2.0 Beaker steps up percolation; the 10 inch Stemless Double Geyser is the compact perc-tube option.

Do HiSi downstems fit other bongs?

Yes — HiSi downstems use standard 14mm and 18mm joints and fit most bongs with matching joint specs. The HiSi downstem line at Angies Boutique runs in half-inch length steps from 3.0 inch to 6.0 inch — measure the original downstem and match the length exactly. See the Downstems collection for the full range.

How do I clean HiSi engineered percolators?

The Jr. Double Bell, Double U, and Triple Bell percolators have finer channels than a plain tube. Soak the piece with Formula 420 Glass Cleaner or Grunge Off Super Soaker, shake to work the cleaner through the perc, and rinse thoroughly. Plan to clean engineered percs more often than a plain bong. See the Cleaning Supplies collection.

Where is HiSi Glass made and what is the company's background?

HiSi Glass is an American scientific glass brand designed and assembled in California, with high-end pieces produced domestically and core production handled in partnership with international manufacturing partners using HiSi-engineered tooling. The brand was founded by glassblowers focused on performance percolator design, with a specific emphasis on engineered diffusion that maximizes airflow without sacrificing filtration. HiSi has built its reputation on the Stack series and Cycler line, which use multi-chamber recycling and stacked perc geometry to deliver smooth, dense rips. Every HiSi piece is made from medical-grade borosilicate, hand-finished, and quality-controlled before retail packaging. The brand sits in a price tier above mass-market production glass like Diamond and Grav but below heady names like Mothership, making it a sweet spot for buyers who want scientific performance without three-digit-plus pricing. Angies Boutique stocks the current HiSi lineup at our Chinatown Los Angeles shop and has carried the brand since it launched widely on the West Coast.

What is the difference between a HiSi Stack and a HiSi Cycler?

The HiSi Stack series uses vertically stacked diffuser plates inside a straight or beaker tube, forcing smoke through multiple layers of perforated discs to break up bubbles and cool the hit before it reaches the mouthpiece. Stacks deliver dense, frothy rips with strong filtration and minimal drag. The HiSi Cycler series adds a recycling chamber that pulls water and smoke through a continuous loop, separating the two before the hit travels up the neck. Recyclers deliver cooler smoke with less water in the mouthpiece, and the visible water motion is part of the appeal. Choose a Stack if you want a more traditional bong feel with upgraded percolation, and choose a Cycler if you want maximum cooling, less splashback, and the visual show of cycling water. Both work for flower and concentrate when paired with the appropriate bowl or banger. Cyclers tend to run $20 to $40 higher than equivalent Stacks. Pair either with a 14mm or 18mm banger from our Highly Educated collection.

What is the right water level for a HiSi recycler?

HiSi recyclers and cyclers require less water than a standard beaker because the cycling chamber depends on a specific water-to-air ratio to function properly. Fill the bottom chamber with just enough water to cover the downstem slits, usually one to two ounces, then attach the bowl or banger, draw a small test pull, and watch the water cycle. If water pulls up into the mouthpiece chamber, drain a half ounce and try again. If the smoke does not bubble through smoothly, add a quarter ounce. The goal is continuous water movement in the recycling loop without water reaching the neck. Stack-series pieces use slightly more water (cover the lowest perc plate by about a half inch) and are more forgiving. Change water after every two to three sessions to prevent stale taste and resin buildup. Clean weekly with isopropyl alcohol and coarse salt, and never use boiling water on cold HiSi glass because the thermal shock can crack engineered percolators. For replacement downstems and bowls, ask in-store at 838 N Broadway.

Is HiSi Glass worth the price compared to cheaper scientific brands?

HiSi sits in the $120 to $300 range for most rigs and bongs, which is double the price of entry-level scientific brands like Diamond Glass or Grav but a fraction of premium names like Mobius or Sovereignty. The price premium over budget glass buys you noticeably thicker borosilicate (5mm to 7mm versus 3mm to 5mm on entry pieces), tighter joint tolerances that seal cleanly without grinding, engineered percolators that actually filter rather than just look fancy, and better long-term durability because the heavier glass survives small bumps and tip-overs. If you smoke daily, the upgrade pays for itself within a year because cheap glass cracks, clogs, and gets replaced more often. If you only smoke occasionally or are buying your first piece, an entry-level brand makes more sense. HiSi is also a strong gift price point because it looks and feels premium without entering true collector territory. Angies Boutique has sold scientific glass in Los Angeles since 1990 and our staff will compare HiSi to Mobius, MAV, and Illadelph side by side in-store.