GRAV Cup Bowl – Glass Slide with Maria Grip, 10mm / 14mm / 19mm

The GRAV Cup Bowl is a borosilicate glass slide available in 10mm, 14mm and 19mm male joints, priced at $9.99. Its defining feature is a glass maria — a raised ring around the stem that stays cool, giving you somewhere safe to grip when you pull a hot bowl mid-session. The GRAV Cup Bowl is deliberately modest in capacity, which discourages overpacking and wastes less flower. Compatible with any water pipe of the matching joint size, and sold at Angies Boutique in Los Angeles.

⚡ At-a-Glance Decision Summary

• What it is: GRAV's standard borosilicate glass bowl, in three joint sizes on one listing — 10mm, 14mm and 19mm male.
• Why choose it: The glass maria. Most bowls at this price have no cool grip point, and that is exactly how people burn their fingers.
• Standout differentiator: Modest capacity by design — it discourages overpacking, so you waste less flower per session.
• Buy more than one. At $9.99 this is a spare part. GRAV's own advice is to keep a couple of clean bowls in rotation.
• Confidence signal: Authentic GRAV bought direct from the manufacturer, priced at GRAV's own MSRP.

🧠 Our Verdict

The GRAV Cup Bowl is a strong recommendation if you need a replacement slide, a spare, or a first upgrade from whatever generic bowl came with your bong. It is the cheapest thing GRAV make and one of the most useful. Check your joint size before ordering — that is the only way to get this purchase wrong, and all three sizes sit on this one page.

Quick Summary

The GRAV Cup Bowl is a high-quality borosilicate glass bowl with a glass maria around the stem for safe handling. It is available in 10mm, 14mm and 19mm male joints, each compatible with any water pipe carrying the matching female joint. The cup shape holds a modest, single-session amount of flower. The GRAV Cup Bowl is $9.99 at Angies Boutique.

GRAV Cup Bowl – Borosilicate Glass Slide with Maria Grip

The maria is the whole point. That raised glass ring around the stem is not decoration — it is a deliberately cool place to hold when you pull the bowl out mid-session. Cheap bowls skip it, which is precisely why people end up juggling a hot slide and dropping it.

The capacity is deliberate too. GRAV describe the Cup Bowl as modest on purpose: it discourages overpacking, which means you use less flower and finish what you pack. It is sized for a solo session rather than a circle.

Three sizes, one listing. 10mm for small rigs, pocket bubblers and Helix pipes. 14mm for the majority of modern bongs — GRAV describe this one as medium-capacity, and it is by far the most popular. 19mm for larger and older water pipes with a wide joint.

This is a part worth owning in multiples. At $9.99 a bowl is the cheapest insurance in your setup. GRAV's own recommendation is to keep a couple of clean ones in rotation, so a resin-clogged bowl never ends a session.

Browse the full GRAV Collection at Angies Boutique for bongs, bubblers, hand pipes and quartz from the same brand.

Summary: The GRAV Cup Bowl is a borosilicate glass slide in 10mm, 14mm or 19mm, with a maria grip and a deliberately modest capacity.

⭐ Who This Product Is For / Not For

Ideal For:

• Anyone who has broken or lost a bowl. This is the standard replacement slide, and at $9.99 it is cheaper than going without.
• People who burn their fingers pulling a hot bowl. The glass maria exists for exactly this.
• Solo smokers. The modest cup size is built for one person rather than a rotation.
• Anyone who wants spares. Two or three clean bowls in rotation means never scraping resin mid-session.
• Owners of GRAV pocket bubblers such as the Conical and Spherical, which take the 10mm.
• Upgraders replacing the generic bowl that shipped with a budget bong.

Not Recommended For:

• Group sessions where you want one big pack. The Cup Bowl is deliberately small — a funnel or Caldera-style bowl holds more.
• Concentrates. This is a flower bowl. You want a quartz banger such as the GRAV Control Tower Set.
• Rigs with a male joint. The Cup Bowl is male and needs a female socket on the pipe.
• Anyone unsure of their joint size. Measure or ask first — a 14mm bowl will not sit in a 10mm or 19mm joint.
• Anyone wanting a screen built in. This is an open cup with a restriction, not a screened bowl.

⚠️ Known Limitations

• You must know your joint size. 10mm, 14mm and 19mm are not interchangeable, and the difference is not obvious by eye. This is the single most common mistake when buying a bowl online.
• Modest capacity. That is the design intent, not a flaw — but if you regularly pack for four people, this is the wrong bowl.
• No built-in screen. Fine flower pulls through the restriction unless you add a screen separately.
• Glass breaks. A bowl is the part most often dropped in any setup, which is the argument for keeping a spare.
• Flower only. Not for concentrates.

Summary: The GRAV Cup Bowl is a small, screenless flower slide, and joint size is the one thing to get right.

⚙️ Features & Benefits

• Glass maria around the stem: A raised ring that stays cooler than the bowl itself, giving you a safe grip when pulling a hot slide. This is the feature that separates the GRAV Cup Bowl from generic bowls at the same price.
• High-quality borosilicate glass: Handles repeated heating without stress cracking, and takes an isopropyl soak without any coating to strip.
• Deliberately modest capacity: Discourages overpacking, so you burn what you pack and waste less flower.
• Three joint sizes on one listing: 10mm, 14mm and 19mm male, so you can match any common water pipe.
• Cup profile with a restriction: Holds flower securely and keeps the pack from pulling through in one go.
• Cheap enough to buy in multiples: Keeping two or three clean bowls in rotation is the simplest upgrade to any setup.

Summary: A maria grip, borosilicate construction and a single-session capacity define the GRAV Cup Bowl.

📐 Structured Specs

🔌 Compatibility & Requirements

• 10mm Cup Bowl fits: Any water pipe with a 10mm female joint — small rigs, GRAV pocket bubblers and Helix pipes.
• 14mm Cup Bowl fits: Any water pipe with a 14mm female joint. This is the most common joint size on modern bongs, including the GRAV Medium Round Base Bong and the GRAV Mini Beaker.
• 19mm Cup Bowl fits: Any water pipe with a 19mm female joint — typically larger or older bongs.
• Also fits ash catchers. A 14mm Cup Bowl seats in the female top of a 14mm ash catcher.
• Not compatible with: Male joints on the pipe, or any joint size other than the one you order.
• Not for concentrates. Use a quartz banger instead.
• Screens are optional and sold separately.

📏 Which Size Do I Need?

This is the only question that matters, and it takes one look at your pipe. Pull out the bowl you already have and look at the joint it sits in.

If you still have the original bowl, bring it into the shop and we will match it in seconds. A 14mm bowl will not sit in a 10mm joint, and a 10mm bowl will fall straight through a 19mm one.

Summary: Match the GRAV Cup Bowl to your pipe's female joint — 14mm covers most modern bongs.

🧼 How to Use & Troubleshooting

1. Seat the GRAV Cup Bowl in your water pipe's female joint, or in the downstem if your piece uses one.
2. Pack the cup loosely. It is sized so that a comfortable pack is roughly one session — resist the urge to press it down hard.
3. Light the edge of the pack rather than the centre, so you corner the bowl and keep the rest fresh.
4. Draw, then lift the bowl out by the maria — the raised glass ring — to clear the chamber. Never grab the cup itself.
5. Tap out the ash while the bowl is still warm.

Problem → Solution:

• The bowl will not seat, or wobbles: Wrong joint size. A 14mm bowl sits proud in a 10mm joint and drops through a 19mm one.
• Flower pulls through into the water: Grind less finely, or add a screen. The Cup Bowl has a restriction but no built-in screen.
• Burnt fingers: You are gripping the cup instead of the maria. The ring is there specifically to stay cooler.
• Draw is blocked: Resin in the restriction. Soak in isopropyl — this is why keeping a spare bowl in rotation is worth the $9.99.

Building your first setup? Read our guide to choosing from a premium smoke shop.

Summary: Pull the GRAV Cup Bowl by the maria, pack it loosely, and corner it rather than torching the whole pack.

🧴 Care & Maintenance

• Tap the ash out while warm. Ash left to sit absorbs moisture and cakes into the restriction.
• Soak in isopropyl with coarse salt for a deep clean. This is plain uncoated borosilicate with no decals or plating, so an isopropyl soak is completely safe.
• Pre-saturated swabs such as Dr. Dabber Iso-Snaps reach the restriction without a full soak.
• Rotate two or three bowls. The genuinely useful habit at this price — one soaking, one in use, and a session never stops for cleaning.
• No thermal shock. Let the bowl cool before rinsing it under cold water.

Summary: Tap the GRAV Cup Bowl out warm and keep a spare soaking — at $9.99 a rotation costs less than the frustration.

⚖️ Comparison Table

The honest read: if resin in your bong is the real problem, an ash catcher solves it more completely than a spare bowl does — and it ships with a bowl of its own. The GRAV Cup Bowl is what you buy when you need the slide itself, or a second and third one.

Summary: Buy the GRAV Cup Bowl as a replacement or spare slide; buy an ash catcher if you want to keep the whole pipe clean.

💬 Common Questions & Answers

What is the maria on a GRAV Cup Bowl?
The maria is the raised glass ring around the bowl's stem, just below the cup. It gives you a grip point that stays cooler than the bowl itself, so you can pull a hot slide out mid-session without scorching your fingers. Most generic bowls at this price have no maria, and that omission is exactly why people fumble and drop them. On the GRAV Cup Bowl it is the headline feature.

Which size do I need — 10mm, 14mm or 19mm?
Match the female joint on your water pipe. 14mm is the most common size on modern bongs and the one to choose if you are unsure. 10mm suits small rigs, GRAV pocket bubblers and Helix pipes. 19mm suits larger and older water pipes. The sizes are not interchangeable — a 14mm GRAV Cup Bowl will not seat in a 10mm joint and will drop straight through a 19mm one.

Is the GRAV Cup Bowl male or female?
Male. The GRAV Cup Bowl drops into a female joint on your water pipe, which is the standard arrangement for bowls and slides. If your pipe has a male joint sticking upward, you need a different part — bring the piece into Angies Boutique and we will identify what fits. This applies to all three sizes on this listing.

How much does it hold?
Deliberately not much. GRAV describe the 14mm as medium-capacity and the 10mm and 19mm as limited-capacity, and the modest size is intentional — it discourages overpacking so you finish what you pack and waste less flower. The GRAV Cup Bowl is sized for a solo session. For a group pack you want a larger funnel-style bowl instead.

Does it come with a screen?
No. The GRAV Cup Bowl has a restriction at the base of the cup that holds a normal grind, but there is no built-in screen. If your flower is ground very finely and pulls through into the water, add a separate glass or steel screen. Grinding a little coarser also solves it without any extra parts.

Why should I buy more than one?
Because a bowl is the cheapest part of your setup and the one most likely to break or clog. GRAV's own advice is to keep a couple of clean bowls in rotation so a resin-blocked slide never ends a session — one soaking in isopropyl while another is in use. At $9.99 a spare GRAV Cup Bowl costs less than the inconvenience of not having one.

I used to buy the 10mm on its own — where did that page go?
All three sizes now live on this single listing. Choose 10mm, 14mm or 19mm from the size selector above and the price is the same $9.99 either way. Any old bookmark or link to the separate 10mm page redirects here with the 10mm option already selected, so nothing is lost.

Is this genuine GRAV?
Yes. Angies Boutique buys direct from GRAV as an authorised dealer, and the GRAV Cup Bowl is priced at GRAV's own MSRP of $9.99 rather than marked up. Every size carries its own manufacturer barcode, which is how we track authenticity through to our shelves in Los Angeles.

🛒 Complete Your Setup

The GRAV Cup Bowl is $9.99 in 10mm, 14mm or 19mm male. Pair it with a spare GRAV Adjustable Downstem — the other part that breaks — or add a 14mm ash catcher to keep resin out of the bong in the first place.

Order online, or come in to 838 N Broadway, Los Angeles, CA 90012 — Chinatown, just north of Downtown. Bring your old bowl and we will match the joint size across the counter in seconds.

Browse glass accessories · Smoking accessories · GRAV

✅ Authentic & Ready to Ship

Angies Boutique is a Los Angeles smoke shop and an authorised GRAV dealer, buying direct from the manufacturer. This is genuine GRAV glass at GRAV's own MSRP, held in our own store and ready to ship or collect today. The GRAV Cup Bowl supports standard checkout and AI-assisted shopping. Not sure of your joint size? Send us a photo of your pipe and we will tell you which of the three to order.