EG25 vs WP40 vs Twin Vent II vs TP40: The Smoke Grenade Specs Guide
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This is the engineering side of the Shutter Bombs catalog: burn duration, vent geometry, ignition type, and price for every Enola Gaye smoke grenade we sell. Use it when you need real spec differences, not just "which color looks best." The biggest thing to get right: TP40 and Twin Vent II are not the same can. The TP40 burns ~60 seconds from a single vent with a top-pull cap; the Twin Vent II vents from both ends and is spent in about 25 seconds. Same family, completely different behavior on camera.
Full Specification Table
Burn durations and formats follow Enola Gaye's published specs; prices are current Shutter Bombs catalog pricing for 2026. Availability changes — check each product page for live stock.
| Model | Burn | Vents | Ignition | Colors | Price |
|---|---|---|---|---|---|
| WP40 | ~90s | Single | Wire pull | 9 | $13.00 |
| WP40-D | ~60s | Single | Wire pull | 9 | $12.50 |
| TP40 | ~60s | Single | Top pull (cap) | 9 | $13.25 |
| Twin Vent II | ~25s | Dual (both ends) | Wire pull | 9 | $14.50 |
| EG25 Micro (single) | ~25s | Single | Wire pull | 9 | $8.00 |
| EG25 (10-pack) | ~25s each | Single | Wire pull | 9 | $70.00 |
| Gender Reveal WP40 | ~90s | Single | Wire pull | Pink, blue | $18.99 |
Tip
Don't confuse the two 40mm short-burn cans. The TP40 holds a steady ~60-second cloud from one vent — plenty of time to pose. The Twin Vent II spends its entire charge in ~25 seconds out of both ends, which is what makes its instant cloud so wide and dense. Read durations as "how long you have to work the shot," not just a number.
WP40 Wire Pull — the 90-Second Workhorse
Burn: ~90 seconds. Vents: single top vent. Ignition: wire pull. Price: $13.00. Colors: all 9.
The WP40 is the longest-burning can in the 40mm family and the default choice when you need a sustained cloud — walking shots, group portraits, repositioning between frames, or video where the smoke has to outlast the take. At roughly 90 seconds you'll typically get 30–50 usable frames per can if you keep the subject moving through the smoke. If you regularly shoot longer scenes, this is the workhorse to stock in depth. See the full breakdown in our WP40 review.
WP40-D Wire Pull — 60s at the Best Value
Burn: ~60 seconds. Vents: single directional outlet. Ignition: wire pull. Price: $12.50 — the lowest per-can price in the 40mm family. Colors: all 9.
The WP40-D trades 30 seconds of burn for the lowest single-can price, which makes it the buy-in-depth pick for events, paintball, and any shoot where you'll burn through a lot of cans. Sixty seconds is still a comfortable posing window for most portraits.
TP40 Top Pull — 60s, One-Handed
Burn: ~60 seconds (same sustained class as the WP40-D). Vents: single. Ignition: top pull — you pull the cap straight up; there is no side wire ring. Price: $13.25. Colors: all 9.
The TP40 is the only top-pull can in the lineup. Instead of pulling a wire ring out to the side, you pull the cap straight up — a clean, one-handed, glove-friendly activation that's faster to redeploy between takes. Choose it over the WP40-D when activation speed and one-handed use matter more than saving a few cents per can. For a full breakdown of the two ignition styles, see wire pull vs top pull.
Twin Vent II Wire Pull — the Dual-Vent Burst
Burn: ~25 seconds total. Vents: dual — it vents from both ends at once. Ignition: wire pull. Price: $14.50. Colors: all 9.
The Twin Vent II is the hero-shot can. Because it dumps its entire charge from both ends in about 25 seconds, it produces the densest, widest instant cloud in the lineup — ideal for a single dramatic frame, a reveal moment, or video that needs an immediate wall of smoke. Compare it to the EG25 on brevity, never to the TP40 on duration: it's a burst, not a posing window. It's one of the few dual-vent smoke bombs available.
EG25 Micro Wire Pull — Quick, Affordable Singles
Burn: ~25 seconds per can. Vents: single. Ignition: wire pull. Price: $8.00 single can, or $70.00 for a 10-pack. Colors: all 9.
The EG25 Micro is the compact entry point — perfect for quick portrait bursts, testing colors before you commit, or handing out for group pulls. Unlike older guides that list it as a 10-pack only, the EG25 is available as a single can at $8 or as a 10-pack at $70 for volume. It's the best per-can value in the catalog and a staple in the mini smoke bombs collection. Full hands-on notes are in our EG25 Micro review.
Gender Reveal WP40
Burn: ~90 seconds. Vents: single. Ignition: wire pull. Price: $18.99. Colors: pink or blue, on the discreet-label WP40 platform.
This is the WP40 in disguise: a full 90-second burn so you have the longest possible window to capture the reveal and the reaction, sold with discreet packaging so the color stays a secret until the pull. There's also an EG25 Micro 3-pack option if you want a quicker burst at a lower price point. Browse the Gender Reveal WP40 or the wider gender reveal collection.
Specs Every Model Shares
Beyond burn time and vents, every Shutter Bombs can is built on the same Enola Gaye platform:
- 9 colors: black, blue, green, orange, pink, purple, red, white, and yellow across the core lineup. See the full color guide for what reads best on camera.
- Non-toxic, cool-burn formula: smoke without an open flame. Not fireworks — no explosion, no projectile. The can does get hot during and after the burn, so hold it by the base or set it on non-flammable ground.
- CE Approved, ATF Compliant: no license needed to buy or use in most states. Check your local rules on the safety and legal guide and the ATF compliance page.
- Shelf life: 10+ years stored cool and dry.
- Ignition force: roughly 5–8 lbs. Wire-pull models — pull the ring firmly to the side, never straight up. TP40 — pull the cap straight up.
Safety
Use these outdoors, or in large ventilated spaces only with venue approval. Smoke devices are generally prohibited in national parks. You must be 18+ to purchase. If a can fails to ignite, set it on a non-flammable surface, wait at least 60 seconds, and never re-pull or open it — submerge misfires in water for 48 hours before disposal.
For exact can dimensions and a side-by-side size reference, see the smoke bomb size chart; for a full decision walkthrough, the buyer's guide.
Frequently Asked Questions
What is the difference between the TP40 and the Twin Vent II?
They are completely different cans. The TP40 burns ~60 seconds from a single vent and ignites by pulling the cap straight up (top pull). The Twin Vent II vents from both ends at once and spends its whole charge in ~25 seconds via a side wire pull. Different burn length, different vent geometry, different ignition — not interchangeable.
How long does the WP40 burn compared to the WP40-D?
The WP40 burns about 90 seconds — the longest in the 40mm family — while the WP40-D burns about 60 seconds at a lower per-can price ($12.50 vs $13.00). Choose the WP40 for sustained walking and group shots; choose the WP40-D when you want 60 seconds at the best value and plan to buy in volume.
How is the EG25 Micro sold — singles or packs?
Both. The EG25 Micro is available as a single can for $8 or as a 10-pack for $70. Each unit burns about 25 seconds, making it the most affordable per-can option in the catalog.
Which model has dual vents?
Only the Twin Vent II vents from both ends at once. The WP40, WP40-D, TP40, and EG25 all use single-vent output profiles.
How do I ignite a top-pull versus a wire-pull grenade?
For the wire-pull models (WP40, WP40-D, Twin Vent II, EG25, Gender Reveal), pull the wire ring firmly out to the side — never straight up. For the TP40, the only top-pull can, pull the cap straight up. Either way expect about 5–8 lbs of pull force. See our wire pull vs top pull guide for technique.
Are all the colors available on every model?
The core 40mm and EG25 models come in all 9 colors (black, blue, green, orange, pink, purple, red, white, yellow). The Gender Reveal WP40 ships only in pink or blue with discreet labels so the color stays secret until the pull.
Ready to Choose Your Can
Need the longest cloud? Go WP40. Best value at 60 seconds? WP40-D. One-handed activation? TP40. A single dramatic burst? Twin Vent II. Quick, affordable singles? EG25 Micro.
Shop the WP40 Browse all smoke grenades
Related Articles
- EG25 vs WP40 vs TP40 vs Twin Vent II: use-case comparison — the buyer-focused quick-pick version of this spec sheet.
- How long do smoke bombs last? Duration guide for every grenade
- Best smoke bombs for photography in 2026: complete buying guide
- Wire-pull smoke grenade: the complete guide to how they work
- Smoke bomb color guide: which color should you choose?