Glass Torch Technologies, usually shortened to GTT, is a Tioga, Pennsylvania maker of torches and burners for glass and metal work. Among boro artists it is one of the most recognized names on the bench, and its lineup runs from a tiny five-jet starter torch all the way to a four-stage production machine that is built to order. That range is exactly why buyers get confused. The company sells sixteen distinct torch models, grouped below into six tiers by stage count and mix, the names (Bobcat, Lynx, Phantom, Mirage, Cobra, Quadzilla) do not tell you where a model sits in the line, and two of the best-known entry torches are not built the way most people assume.
For every model’s specs and price in one table, start at the Glass Torch Technologies hub. This guide lays the whole lineup out in one place: what separates a GTT from other torches, which models are genuinely Triple Mix and which are standard surface mix, what each one costs, how much oxygen each can actually use, and who each model is for. Every spec here comes from GTT’s own materials cross-checked against our catalog, and where a figure is not published we say so rather than guess. The prices are GTT’s own published figures and they move around; confirm current numbers with GTT before you buy.
What makes a GTT a GTT
The feature GTT is known for is Triple Mix. Most bench torches are surface-mix designs: fuel and oxygen stay separate until they leave the face of the torch and combine at the burner surface, which is forgiving and hard to flash back. GTT’s patented Triple Mix builds on that surface-mix foundation by surrounding the fuel with oxygen and then injecting oxygen directly down the fuel stream, with the gases still meeting at the face and two independently valved oxygen streams, which the company says produces a wider, more controllable flame with stronger reducing capability, a claim the community most often echoes around silver-bearing and reactive boro colors. It is worth reading the details in our Triple Mix explainer, because Triple Mix is a specific GTT technology, not a generic category, and it does not appear on every torch that wears the GTT badge.
That last point is the one that trips people up. GTT’s two entry torches, the Cricket and the Bobcat, are standard surface mix, not Triple Mix. Triple Mix begins one step up, at the Lynx, and runs up the line from there. GTT also offers a separate compressed-air option called 4-Way Mix, which injects compressed air alongside gas and oxygen; it is its own approach with its own trade-offs, covered in our compressed-air 4-Way Mix guide, and it is not the same thing as Triple Mix.
Two more GTT traits matter to buyers. First, GTT’s smallest torches are built around very low fuel pressure. GTT’s own flow rate chart starts the Cricket, Bobcat, Scorpion and Sidewinder at a quarter of a psi, which is low enough for unboosted household natural gas (it typically arrives at roughly seven inches of water column), so a home studio running one of those four on a gas line can often skip a booster pump. The rest of the line asks for more at its largest usable flame on propane: the same chart lists 5 to 8 psi of fuel for the Lynx and Cheetah, 10 psi for the Phantom, Mirage, Delta Elite and Kobuki, and 20 psi for the Delta Mag, Cobra and Viper. Whether one of those bigger torches gives its full flame on a house line is a question to settle with GTT and your gas installer, and a booster is the likely answer. Every model in the lineup runs on propane or natural gas paired with oxygen; GTT torches are not multi-fuel beyond that, so do not assume hydrogen or other gases.
Second, GTT designs its smallest torches around oxygen concentrators: it says the Cricket is built to get the best out of a 5 LPM, 5 psi unit. One important caution about the oxygen figures in this guide and on GTT’s Flow Rate Chart: the LPM numbers are maximum-usable-flame figures, the most oxygen the biggest flame on that torch can consume, not a required setpoint. GTT’s chart notes say actual use varies and is generally lower, and that natural gas consumption runs about 2.5 times the propane figures. Treat the numbers as the top of the range, not a target you have to hit.
The full GTT lineup
Sixteen models, grouped by burner architecture. Oxygen is the maximum-usable-flame figure in LPM; prices are GTT’s published figures.
| Model | Mount | Stages | Jets | Max usable O2 (LPM) | Price | Best for |
|---|---|---|---|---|---|---|
| Cricket | Bench | 1 | 5 | ~5.5 | ~$255 | Beads, soft glass, solid boro to 1 in (GTT); one concentrator |
| Bobcat | Bench | 1 | 7 | ~8.5 | ~$275 | Beginner boro and beads; solid boro to 1.5 in (GTT) |
| Lynx | Bench or hand | 1 | 7 | ~9.5 | ~$525 | First Triple Mix; detail, beads, solid boro to 2 in (GTT) |
| Cheetah | Bench | 1 | 13 | ~13 | ~$645 | Bigger single-stage flame; solid boro to 3 in (GTT) |
| Scorpion | Bench | 2 | 13 | ~9.5 | ~$945 (Lynx-center version) | Two-stage surface mix; layered small-to-mid work |
| Sidewinder | Bench or hand | 2 | 22 | ~15 | ~$1,125 (Lynx-center version) | Two-stage surface mix; offhand sculpting |
| Phantom | Bench or hand | 2 | 22 | ~16.5 | ~$1,425 | Two-stage Triple Mix workhorse; pipes, mid boro |
| Mirage | Bench or hand | 2 | 40 | ~26 | ~$1,975 | Larger two-stage Triple Mix; tube, bigger solids |
| Delta Elite | Bench or hand | 2 | 57 | ~30 | ~$2,575 | High-output Triple Mix; bench standard, hand version |
| Kobuki | Bench | 3 | 49 | ~33 | ~$3,550 | Three-stage production Triple Mix |
| Ninja | Bench | 3 | 72 | Not published | ~$4,000 | Three-stage production; large-format boro |
| Samurai | Bench | 3 | 72 | Not published | ~$4,000 | Three-stage production; large-format boro |
| Delta Mag | Bench | 3 | 88 | ~54 | ~$4,250 | High-output three-stage production |
| Cobra | Bench | 3 | 130 | ~65 | ~$5,500 | Very high-output production boro |
| Viper | Bench | 3 | 200 | Not published | ~$7,000 | Top-tier production; largest work |
| Quadzilla | Bench | 4 | Varies | Not published | Built to order | Four-stage, built to order; industrial-scale |
Tier by tier: every model
Entry, standard surface mix. These two are not Triple Mix, and that is fine: they are honest, forgiving starter torches.
Cricket
~$255 · 5 jets · 1 stage · ~5.5 LPM max O2 · standard surface mix
The Cricket is the smallest GTT, a five-jet single-stage surface-mix torch that tops out near 5.5 LPM of oxygen at full flame, comfortable on a single concentrator. GTT rates it for 1 inch solid boro, boro pendants up to 2 inches and larger soft-glass pieces, and its instruction sheet gives a minimum of a quarter psi of fuel and 3 psi of oxygen. GTT’s own site lists it at about $255, the lowest published price in the lineup; confirm the current figure with GTT before you order. If it is the Cricket or the Bobcat, our Bobcat vs Cricket comparison covers that choice.
Bobcat
~$275 · 7 jets · 1 stage · ~8.5 LPM max O2 · standard surface mix
The Bobcat is the seven-jet single-stage surface-mix torch most often recommended as a beginner’s boro torch. At about $275 and a maximum usable flame near 8.5 LPM, it runs on one concentrator: GTT says it runs well on a 5 LPM unit and is optimal on 8 LPM. GTT gives its flame as a 2 inch pinpoint up to 9/16 inch by 13 inches, enough for 1.5 inch solid boro and pendants up to 3 inches.
Single-stage Triple Mix. Triple Mix starts here.
Lynx
~$525 · 7 jets · 1 stage · ~9.5 LPM max O2 · Triple Mix
The Lynx is a seven-jet single-stage Triple Mix torch, the same jet count as the Bobcat but with a third valve: red fuel, green main oxygen and blue secondary oxygen. That blue valve is the Triple Mix control. GTT rates it for solid boro up to 2 inches with a pinpoint flame, and sells it as a bench torch at roughly $525 and as a separate hand torch. At about 9.5 LPM at full flame, it is the natural first step for someone who wants Triple Mix behavior without a two-stage torch’s oxygen appetite.
Cheetah
~$645 · 13 jets · 1 stage · ~13 LPM max O2 · Triple Mix
The Cheetah steps up the flame with thirteen ports total, a three-port center fire inside a ten-port outer ring, still single stage, pulling up to about 13 LPM and costing near $645. GTT rates the bench Cheetah for solid boro up to 3 inches with a flame from pencil width to 3/4 inch wide by 20 inches, so it is a real step in size over the Lynx, at the price of an oxygen ceiling past what one home concentrator delivers.
Two-stage, standard surface mix. Two stages means an independently adjustable outer flame around a center, so you can run a small tight flame or open up a broad bushy one.
Scorpion
~$945 · 13 jets · 2 stages · ~9.5 LPM max O2 · surface mix
The Scorpion is a two-stage surface-mix bench torch: the five-jet Cricket center fire inside an eight-jet outer, 13 jets in the standard version, with a Lynx-center version (fifteen jets) sold separately. Our catalog price of about $945 is GTT’s listing for that Lynx-center version; confirm the standard version’s price with GTT. Its maximum usable oxygen is near 9.5 LPM on GTT’s flow chart (GTT’s product page says 11), similar to the Lynx; what the second stage buys here is flame flexibility, the ability to run tight or open, more than raw top-end heat.
Sidewinder
~$1,125 · 22 jets · 2 stages · ~15 LPM max O2 · surface mix (hand or bench)
The Sidewinder is a two-stage surface-mix torch with twenty-two jets, drawing up to about 15 LPM, sold as a hand torch or a 2-/4-stud bench setup with either a standard-mix Bobcat or a Triple Mix Lynx center. Our catalog price of about $1,125 is GTT’s listing for the Lynx-center bench configuration; GTT lists the 2-stud and 4-stud versions at the same price and gives a flame up to 2 1/2 inches wide by 30 inches, solid boro to 3 inches. In hand-torch form, with an on/off switch in the handle, it is aimed at offhand sculpting and work you move around rather than fixed bench production.
Two-stage Triple Mix. This is the heart of GTT’s boro range.
Phantom
~$1,425 · 22 jets · 2 stages · ~16.5 LPM max O2 · Triple Mix
The Phantom is the two-stage Triple Mix workhorse: a Lynx seven-jet center inside a fifteen-jet outer, twenty-two jets in total, up to about 16.5 LPM at full flame, around $1,425 for the bench model. It is the torch a lot of working pipe and boro artists settle on because it covers detail and size in one bench torch. GTT also sells a Phantom hand torch with a switch for the outer fire.
Mirage
~$1,975 · 40 jets · 2 stages · ~26 LPM max O2 · Triple Mix
The Mirage is the larger sibling: forty jets, up to about 26 LPM, and a Mirage list price around $1,975, made for tube work and bigger solid pieces where the Phantom runs out of headroom.
Delta Elite
~$2,575 · 57 jets · 2 stages · ~30 LPM max O2 · Triple Mix (bench or hand)
The Delta Elite is the high-output member of this group: fifty-seven jets, up to about 30 LPM, near $2,575 for the standard four-stud bench model on GTT’s product page. GTT also sells a separate Delta Elite hand torch version with its own controls and pricing, which is how many makers know the name: serious heat you can carry to large offhand sculpture.
Three-stage Triple Mix production. These are production burners with a third independently controlled stage, big oxygen demands, and prices to match; plan the oxygen supply before the torch.
Kobuki
~$3,550 · 49 jets · 3 stages · ~33 LPM max O2 · Triple Mix
The Kobuki is the entry to this tier, forty-nine jets and up to about 33 LPM for roughly $3,550. The jets sit in three stages: a seven-jet Lynx center, a fifteen-jet Phantom middle and a 27-jet outer ring, which is why GTT says it can imitate the Lynx, Phantom, Mirage and Delta Elite flames plus its own wider one. A compressed-air version is offered. Weighing it against the next size up is the subject of Kobuki vs Delta Mag.
Ninja
~$4,000 · 72 jets · 3 stages · O2 not published · Triple Mix
The Ninja is a seventy-two-jet three-stage burner at about $4,000: a seven-jet Lynx center, a fifteen-jet Phantom middle and a fifty-jet outer, in a compact body GTT sizes between the Kobuki and the Delta Mag. The Ninja has no row on GTT’s Flow Rate Chart, so its maximum usable oxygen is not published, and we leave it blank rather than invent a figure.
Samurai
~$4,000 · 72 jets · 3 stages · O2 not published · Triple Mix
The Samurai is the Ninja’s seventy-two-jet three-stage counterpart, also about $4,000. The difference is the middle stage: the Samurai pairs the Lynx center with a 33-jet Mirage middle and a 32-jet outer, where the Ninja uses the smaller Phantom middle. The Samurai is not on the Flow Rate Chart either, so its maximum usable oxygen is not published. Ninja vs Samurai goes through which middle stage suits which work.
Delta Mag
~$4,250 · 88 jets · 3 stages · ~54 LPM max O2 · Triple Mix
The Delta Mag climbs to eighty-eight jets with a Phantom middle, or ninety with a Mirage middle (GTT says the maximum flame size is the same either way), and up to about 54 LPM for near $4,250. GTT’s chart asks 20 psi of fuel and 80 psi of oxygen at its largest usable flame, which is bulk or cylinder oxygen territory.
Cobra
~$5,500 · 130 jets · 3 stages · ~65 LPM max O2 · Triple Mix
The Cobra is a very high-output production torch, one hundred thirty jets (a seven-jet Lynx center, a 33-jet Mirage middle and a ninety-jet outer) and up to about 65 LPM, around $5,500.
Viper
~$7,000 · 200 jets · 3 stages · O2 not published · Triple Mix
The Viper tops the standard line at two hundred jets and roughly $7,000, built with either a Mirage middle or a Delta Elite middle around the Lynx center. GTT’s chart lists its pressures (20 psi fuel, 80 psi oxygen) but leaves its flow cells empty, so its maximum usable oxygen is not published. Cobra vs Viper compares the two largest stock torches.
Bespoke.
Quadzilla
Built to order, no published price · jets vary · 4 stages · O2 not published · four-stage
The Quadzilla sits outside the standard catalog: a four-stage torch built to order, with jet count varying by build and oxygen figures unpublished. GTT publishes no price for it, and because it is custom, the only reliable specification and the only reliable price are whatever GTT quotes you for your specific build. Confirm everything directly with the company, and see Quadzilla vs Delta Mag for what the fourth stage buys over the largest stock three-stage torches.
Oxygen and fuel reality for the line
The single biggest planning mistake with GTT torches is buying more torch than your oxygen supply can feed. Because the LPM figures above are maximum-usable-flame ceilings, you do not have to match them, but they tell you how much headroom a torch has and therefore how much oxygen it wants to work comfortably. Our oxygen sizing guide walks through the math in detail; here is the tier-level picture.
The arithmetic is simple: compare a torch’s ceiling to what your supply actually delivers. The entry torches (Cricket at ~5.5 LPM, Bobcat at ~8.5) fit inside a common 5 to 10 LPM concentrator, which is a large part of why the Bobcat is such a common first boro torch. The Lynx (~9.5) still fits a strong single concentrator, but the Cheetah’s ~13 LPM ceiling already exceeds what most single home units deliver, so its full flame means paired concentrators, a high-output unit, or tanks. The two-stage torches run from ~9.5 LPM (Scorpion) to ~26 and ~30 LPM (Mirage, Delta Elite); at those upper ceilings concentrators alone stop being realistic and compressed or bulk oxygen takes over. The three-stage production torches (~33 to ~65 LPM where published) and the Quadzilla are compressed or bulk oxygen machines outright; no concentrator stack reaches those flow ceilings sensibly.
On fuel, the quarter-psi floor on GTT’s chart belongs to the Cricket, Bobcat, Scorpion and Sidewinder, which is why those four are the GTT torches that run on unboosted household natural gas, a genuinely useful trait for home studios. Every other model sits above house pressure on the chart’s fuel figures at the largest usable flame: 5 to 8 psi for the Lynx and Cheetah, 10 psi for the Phantom, Mirage, Delta Elite and Kobuki (with 35 psi oxygen for the Phantom, for example), and 20 psi for the Delta Mag, Cobra and Viper, so plan on a conversation with GTT and an installer, and probably a booster, before you count on a big GTT’s full flame from a house line. Propane works everywhere too. Whatever the fuel, follow GTT’s own pressure and setup instructions for your specific model; those instructions, not this guide, are the authority on your regulator settings.
Which GTT for whom
If you are choosing between two specific GTT models, we have dedicated comparisons that go deeper than this overview:
- First real boro torch, deciding between the two entry paths: the standard-surface-mix Bobcat versus the first Triple Mix Lynx is the core decision. See Lynx vs Bobcat. If you are weighing the Bobcat against a common non-GTT starter, Bobcat vs Nortel Minor covers that cross-shop.
- Stepping up within the single-stage Triple Mix range: the bigger-flame question is Cheetah vs Lynx, and the jump from the standard-mix entry torch is Bobcat vs Cheetah. If you are comparing the Lynx against a larger non-GTT bench burner, see Lynx vs Nortel Red Max.
- Two stages without Triple Mix in the outer fire: the Scorpion and Sidewinder are compared with each other in Sidewinder vs Scorpion, and the Scorpion against the single-stage Lynx in Scorpion vs Lynx.
- Committing to a two-stage Triple Mix workhorse: the in-house step up is Phantom vs Mirage, and whether the Phantom is worth the move from a Cheetah is Cheetah vs Phantom. Cross-shopping the Phantom against other makers’ torches is common; see Bethlehem Bravo vs GTT Phantom and Carlisle CC vs GTT Phantom.
- Going large in the two-stage range: if you are deciding whether to jump from the Mirage to the high-output Delta Elite, Mirage vs Delta Elite lays out the trade-off, and Phantom vs Delta Elite covers skipping the Mirage.
- Three-stage production: start with Kobuki vs Delta Mag and Ninja vs Samurai.
The general shape of it: beginners and bead makers who want a forgiving torch on one concentrator start at the Bobcat, or the Cricket for the smallest work. Artists who want Triple Mix behavior and reactive-color control step into the Lynx or Cheetah. Working pipe and mid-size boro artists land on the Phantom, moving to the Mirage as their work and oxygen supply grow. Hand-torch sculptors look at the Sidewinder or the higher-output Delta Elite. Production shops with compressed or bulk oxygen scale up through the three-stage burners, and only shops with genuinely industrial needs and budgets reach the Quadzilla.
Related guides
- GTT Triple Mix technology explained
- GTT compressed-air 4-Way Mix
- How many LPM does my torch need?
- GTT Lynx vs Bobcat
- GTT Cheetah vs Lynx
- GTT Phantom vs Mirage
- GTT Mirage vs Delta Elite
- Bethlehem Bravo vs GTT Phantom
- Carlisle CC vs GTT Phantom
- GTT Bobcat vs Nortel Minor
- GTT Lynx vs Nortel Red Max
Sources
- Glass Torch Technologies, Flow Rate Chart (fuel and oxygen pressures and flows at the largest usable flame, propane): https://www.glasstorchtech.com/_files/ugd/0f433e_940fa1536d544665a118116eb9542e62.pdf
- Glass Torch Technologies, standard torch range: https://www.glasstorchtech.com/standard-torches
- Glass Torch Technologies, Triple Mix torches: https://www.glasstorchtech.com/triple-mix-torches
- Glass Torch Technologies, contact and location (Tioga, PA): https://www.glasstorchtech.com/contact
- Glass Torch Technologies, Cricket, Bobcat and Scorpion model pages (flame size, capacity and concentrator guidance): https://www.glasstorchtech.com/cricket, https://www.glasstorchtech.com/bobcat and https://www.glasstorchtech.com/scorpion-2-and-4-stud
- Glass Torch Technologies, Quadzilla (built to order): https://www.glasstorchtech.com/quadzilla
- Lampwork Etc., “Pre-mix vs Surface mix” (community discussion): http://www.lampworketc.com/forums/showthread.php?t=191042
Editor’s note: figures come from GTT’s own product pages, instruction sheets and Flow Rate Chart where we have them, read between July and October 2026 and held in our catalog. Prices are GTT’s listed figures for the standard bench configuration and move around; hand-torch, compressed-air and switch versions are priced separately. The Ninja, Samurai and Quadzilla have no row on the Flow Rate Chart and the Viper’s flow cells are empty, so those oxygen figures are left blank rather than guessed. The LPM numbers are ceilings, not required settings. Confirm current lineup, specs, and pricing with GTT before you buy.