GRAV Octobowl – 14mm Male Slide with Built-In Glass Screen

The GRAV Octobowl is a 14mm male borosilicate bowl with a glass screen built into the bowl itself. Six small glass tentacles reach across the base of the cup, holding ground flower above the opening and catching tar and ash before either reaches your water. That removes the usual trade-off — a wide airflow hole that lets flower fall through, or a narrow one that chokes the draw. The GRAV Octobowl is also one of the highest-capacity bowls GRAV make, and a glass arm on the side lets you pull it hot without burning your fingers.

⚡ At-a-Glance Decision Summary

• What it is: A 14mm male glass slide, 2" tall and 1.75" wide, with an integrated glass screen and a pull handle.
• Why choose it: No separate screen to buy, clean, lose or replace — the screen is part of the glass.
• The differentiator: Six glass tentacles across the bowl floor. They hold flower up, let air through, and trap tar and ash.
• Capacity: One of the largest bowls in GRAV's range. Built for passing round or for several hits off one pack.
• The handle: A glass arm on the side. Pull the GRAV Octobowl by that rather than the hot cup.
• Fits: Any 14mm female joint. That covers seven pieces currently in stock at Angies Boutique.
• About the name: Six tentacles, not eight. GRAV know — their own line is that "hexabowl sounded silly."
• Confidence signal: 263 reviews on GRAV's own site. Priced at $11.99, matching GRAV exactly.

Summary: The GRAV Octobowl is a high-capacity 14mm male slide with a built-in glass screen and a pull arm.

🧠 Our Verdict

Buy the GRAV Octobowl if you are tired of picking bits of flower out of your bong water — the built-in glass screen solves that permanently for two dollars more than a plain slide.

Quick Summary

The GRAV Octobowl is a 14mm male borosilicate slide measuring 2" tall by 1.75" wide. Six glass tentacles form a screen across the bowl floor, holding ground flower in place and catching tar and ash so neither passes into the water. It is one of GRAV's highest-capacity bowls, suited to sharing or to several hits off a single pack, and a glass arm on the side allows safe removal while hot. The GRAV Octobowl fits any 14mm female joint. Price: $11.99.

GRAV Octobowl – A Glass Screen That Is Part of the Bowl

Every bowl faces the same problem, and most solve it badly. Make the hole in the base wide and you get excellent airflow — along with ground flower dropping straight through the downstem and into your water. Make the hole narrow and the flower stays put, but the draw tightens and the bowl clogs. The usual workaround is a mesh or glass screen dropped into the cup, which works until you have to clean it, or it warps, or it disappears.

The GRAV Octobowl removes the choice. Six small glass tentacles reach in across the floor of the cup, forming a screen out of the bowl's own material. Air passes between them freely, ground flower rests on top, and tar and ash collect there instead of travelling down into the water. There is no separate part, so there is nothing to buy again, nothing extra to scrub, and nothing to lose. GRAV's full range of bowls, bangers and glass sits in our GRAV collection.

The other half of the design is capacity. The GRAV Octobowl is among the largest bowls GRAV produce, which makes it the right pick for a group or for someone who would rather pack once and take several hits than repack between each one. A glass arm on the side handles the practical consequence of a big bowl — it stays hot longer, so you pull it by the arm rather than the cup.

And on the name: "octo" means eight, and there are six tentacles. GRAV are entirely aware. Their own explanation is that Octobowl sounded rad, hexabowl sounded silly, and they apologise for nothing.

Summary: The GRAV Octobowl builds its screen from six glass tentacles, giving full airflow without letting flower into the water.

⭐ Who This Product Is For / Not For

Ideal for:

• Anyone who grinds fine. A fine grind is exactly what falls through an unscreened bowl. The GRAV Octobowl holds it.
• People who hate changing bong water. Less debris in the water means longer between changes.
• Group sessions. High capacity means one pack goes round rather than stopping after two people.
• Anyone tired of separate screens. Mesh screens burn out, glass screens fall out. This one is fused in.
• Owners of any 14mm female piece. Seven in-stock pieces at Angies Boutique take the GRAV Octobowl.
• People who have burnt their fingers. The glass arm exists for exactly that.

Not recommended for:

• 10mm or 19mm joints. The GRAV Octobowl is 14mm male only. The GRAV Cup Bowl covers all three sizes.
• Male-joint pipes. This bowl is male, so the pipe's joint must be female.
• Concentrate. A bowl is for flower. Concentrate needs a quartz banger.
• Micro-dosing. A high-capacity bowl packed lightly leaves flower sitting and going stale. A smaller bowl suits single hits better.
• Anyone who wants a coloured slide. The GRAV Octobowl is stocked here in clear.

Summary: The GRAV Octobowl suits 14mm female pipes, fine grinds and shared sessions, and does not suit other joint sizes or concentrate.

⚠️ Known Limitations

• 14mm male only. No 10mm or 19mm version. Check your joint before ordering.
• The screen cannot be removed. Being built in is the point, but it also means the tentacles have to be cleaned in place rather than swapped out.
• Tar collects on the tentacles. That is the screen doing its job — it is catching material that would otherwise be in your water — but it does mean the bowl needs soaking on a schedule.
• High capacity is not always wanted. Pack the GRAV Octobowl full and smoke half, and the rest sits and goes stale. Pack to the session.
• The cup gets hot. A larger bowl holds heat longer. Use the arm.
• Clear only. Stocked here in clear borosilicate.

Summary: The GRAV Octobowl trades screen replaceability and small-session flexibility for a permanent built-in screen and high capacity.

⚙️ Features & Benefits

• Built-in glass screen: Six tentacles across the bowl floor hold flower up and let air through. No separate screen to buy, clean, warp or lose.
• Catches tar and ash: Material that would normally end up in your bong water stays in the bowl, so the water stays cleaner for longer.
• Full airflow: Gaps between the tentacles keep the draw open. The GRAV Octobowl solves the wide-hole problem without narrowing the hole.
• High capacity: One of the largest bowls in GRAV's range — sized for passing round or for multiple hits off one pack.
• Glass pull arm: A worked handle on the side for removing the bowl hot, without touching the cup.
• 14mm male joint: Fits any 14mm female pipe, which is the most common joint size in the category.
• Borosilicate glass: Handles repeated heating and isopropyl cleaning without clouding.
• 2" × 1.75": Substantial in the hand for a slide, which is part of why it holds so much.

Summary: A fused six-tentacle glass screen, high capacity and a pull handle define the GRAV Octobowl.

📐 Structured Specs

Summary: The GRAV Octobowl measures 2" × 1.75" as a 14mm male slide with an integrated glass screen.

🔌 Compatibility & Requirements

Compatible with any 14mm female joint, including these pieces in stock:

• GRAV Upline Water Pipe — this is the bowl the Upline ships with, so it is a direct like-for-like replacement or spare.
• GRAV Coil Showerhead Water Pipe — a high-capacity bowl suits its large chamber.
• GRAV Upline Upright Bubbler — GRAV specifically recommend the Octobowl for upright bubblers.
• GRAV Helix Beaker Water Pipe — its included Helix Taster Bowl is deliberately small, so the GRAV Octobowl is the capacity upgrade.
• GRAV Medium Round Base Bong, GRAV Medium Upright Bubbler and GRAV Wedge Bubbler.
• 14mm ash catchers such as the GRAV 14mm Standard Ash Catcher, which present a 14mm female joint of their own.
• Isopropyl alcohol and coarse salt. Dr. Dabber ISO Snaps are sized for exactly this kind of small glass.

NOT compatible with:

• 10mm and 19mm joints. The GRAV Octobowl is made in 14mm only.
• Male-joint pipes. This bowl is male, so it needs a female joint to seat into.
• Concentrate. Use a quartz banger, not a flower bowl.
• Separate screens. Adding one on top of the built-in tentacles restricts airflow for no benefit.
• Dishwashers and boiling water. Neither is safe for this glass.

Summary: The GRAV Octobowl fits any 14mm female joint and is not made in 10mm or 19mm.

🧼 How to Use & Troubleshooting

Using the GRAV Octobowl:

1. Rinse with warm water before first use.
2. Seat the bowl in a 14mm female joint. It should sit snug without force.
3. Grind your flower. A medium grind works best — the tentacles hold fine material, and a coarse grind wastes the capacity.
4. Pack to the session rather than to the brim. The GRAV Octobowl holds a lot, and flower left smouldering goes stale.
5. Light the edge of the bowl rather than the centre, so you corner the pack and keep later hits fresh.
6. Pull the bowl by the glass arm, never the cup. A high-capacity bowl retains heat.

Cleaning: Soak the GRAV Octobowl overnight in a cleaning solution, then rinse — thirty seconds of hot water, thirty of warm, ten of cool. Use a cotton bud on the tentacles, which is where tar concentrates. Soaking works far better than scrubbing, because the gaps between the tentacles are narrow.

Troubleshooting:

• Problem: the draw feels restricted. Solution: tar has closed the gaps between the tentacles. Soak the bowl. This is the normal maintenance cycle rather than a fault.
• Problem: flower still reaching the water. Solution: the grind is extremely fine, or the bowl was overpacked and material spilled past the rim. Grind slightly coarser.
• Problem: the bowl sticks in the joint. Solution: resin build-up. Twist gently while pulling on the arm; never lever it sideways against the joint.
• Problem: half the pack goes stale. Solution: pack less, or corner the bowl by lighting one edge at a time instead of the whole surface.
• Problem: the bowl is too hot to touch. Solution: that is what the arm is for. It stays cool because it sits away from the cup.

For a broader walk-through of how to judge glass quality and joint fit before buying, read our guide on how to select the best products from a premium smoke shop.

Summary: Pack the GRAV Octobowl to the session, pull it by the arm, and soak rather than scrub.

⚖️ Comparison Table

How to read this table. All three are in stock and all three fit a 14mm female joint, so the choice comes down to one feature each. The GRAV Octobowl is the only one with a screen built into the glass, which is what matters if you grind fine or you are tired of debris in your water. The Cup Bowl is the cheapest and the only one made in all three joint sizes, so it is the safe default if you own several pipes. The Caldera has a raised rim that helps when packing generously. There is two dollars between the Cup Bowl and the GRAV Octobowl, and the screen is what that two dollars buys.

Summary: Among GRAV's 14mm bowls the GRAV Octobowl is the one with an integrated glass screen.

💬 Common Questions & Answers

Why is it called an Octobowl if it has six tentacles?
Because GRAV thought it sounded better. This is a question they answer themselves on their own product page: they know "octo" means eight, there are six tentacles, and their stated reasoning is that Octobowl sounded rad while hexabowl sounded silly. The number in the name has no functional meaning. What matters is that six glass arms reach across the floor of the GRAV Octobowl to form a screen, holding ground flower above the opening while air passes freely between them.

Does it really stop flower getting into my bong water?
Yes, and that is the specific problem it was designed for. A bowl with a single wide hole gives good airflow but lets ground flower drop through the downstem into the water. The six tentacles on the GRAV Octobowl sit across that opening, so flower rests on top of them instead. They also catch tar and ash, which means less debris reaching the water and longer between water changes. A very fine grind can still work through eventually, so grind medium rather than to powder.

Do I still need a separate screen?
No, and adding one is counterproductive. The screen on the GRAV Octobowl is built into the glass, so laying a mesh or glass screen on top of the tentacles restricts airflow without adding any filtration. Skipping the separate screen is most of the value here: mesh screens scorch and need replacing, drop-in glass screens fall out during cleaning, and both are one more small thing to keep track of. The Octobowl's screen cannot fall out because it is part of the bowl.

What does the arm on the side do?
It is a handle for pulling the bowl while it is hot. The GRAV Octobowl is one of GRAV's highest-capacity bowls, and a bigger cup holds heat longer, so reaching for the glass itself right after a hit is how people burn their fingers. The arm sits out from the cup and stays comparatively cool. Grip it and twist gently to lift the bowl out of the joint — and never lever it sideways, which stresses the joint.

Will it fit my pipe?
If your pipe has a 14mm female joint, yes. The GRAV Octobowl is made in 14mm male only — there is no 10mm or 19mm version, so check your joint size first. At Angies Boutique it fits seven pieces currently in stock, including the GRAV Upline Water Pipe, which ships with this exact bowl, the GRAV Coil Showerhead Water Pipe, the GRAV Upline Upright Bubbler, and the GRAV Helix Beaker Water Pipe. For 10mm or 19mm, the GRAV Cup Bowl covers those sizes.

How do I clean it?
Soak it. Fill a container with cleaning solution and leave the GRAV Octobowl in it overnight, then rinse with hot water for about thirty seconds, warm for thirty, and cool for ten. Use a cotton bud on the tentacles, which is where tar concentrates because that is where the smoke and the plant material meet. Soaking beats scrubbing here because the gaps between the tentacles are narrow and no brush reaches into them properly. Borosilicate handles isopropyl without clouding.

Summary: The GRAV Octobowl needs no separate screen, fits 14mm female joints only, and cleans by soaking.

🛒 Complete Your Bowl Setup

• The piece it ships with: the GRAV Upline Water Pipe — this is its factory bowl, so buying a spare keeps one packed and one soaking.
• A cheaper everyday slide: the GRAV Cup Bowl at $9.99, made in 10mm, 14mm and 19mm.
• A deeper pack: the GRAV 14mm Caldera Bowl with its raised rim.
• Cleaner water still: the GRAV 14mm Standard Ash Catcher, which catches what the bowl does not.
• Cleaning: Dr. Dabber ISO Snaps, sized for slides and bangers.

Browse the wider ranges in Glass Accessories and Bongs.

Summary: Pair the GRAV Octobowl with a spare slide, a 14mm ash catcher, and isopropyl cleaning supplies.

✅ Authentic & Ready to Ship

The GRAV Octobowl sold here is authentic GRAV glass. Angies Boutique buys direct from GRAV as an authorized dealer, so every bowl arrives as GRAV packed it.

Priced at $11.99 — the same price GRAV charge on their own site. In stock and ready to ship, or collect it the same day in person at 838 N Broadway, Los Angeles, CA 90012.

Summary: The GRAV Octobowl is authentic, in stock at $11.99, and available for same-day pickup in Los Angeles.