Caliburn GPP top fill pod resistances
Each GPP top fill cartridge holds 2ml of e-liquid in line with UK TPD limits and has the mesh coil built in. Pick the resistance that matches the inhale style you want.
About Caliburn GPP top fill pods
GPP stands for G Pod Platform, Uwell's unified pod system that replaced the older Caliburn G3 pods. The platform was built so a single pod fits across multiple Caliburn generations, which means you no longer have to buy a different pod for every device upgrade. Top fill is the headline benefit of this range. The cap lifts off the top of the pod, you fill it, and it slots back in without removing the pod from your kit. No mess, no gripping a slippery pod with one hand while filling with the other, no losing the pod under the sofa.
Inside each cartridge is a built-in mesh coil. Mesh heats more evenly than a traditional wire coil, which keeps flavour clean across the life of the pod and reduces dry hits. When the coil eventually wears down, you swap the whole pod rather than rebuilding the coil. Most adult vapers find a GPP pod lasts between one and two weeks of regular use before flavour starts to drop off.
Top fill in every resistance
Most retailers only carry GPP top fill in the lower-resistance pods (0.4 and 0.6 ohm) and force you onto the side fill range for tighter MTL options. The e-liquids.com top fill range covers every resistance from 0.4 ohm through to 1.2 ohm, so you can stay on the no-removal refill design even if you prefer a tight cigarette-style draw. The build, mesh coil and 2ml capacity are identical across the four resistances. The only thing changing is the wattage range and how tight the draw feels.
Compatible Caliburn devices
GPP top fill pods fit every G3, G4 and G5 series Caliburn kit, including the touchscreen Caliburn G4 Pro and the entry-level G5 Lite range. They are backwards compatible with older G3 series devices and they will continue to work as new GPP-platform Caliburn kits launch through 2026. If your kit uses GPP pods, the pods on this page fit it.
PRO-FOCS 4.0 and U-squared anti-leak technology
Two pieces of Uwell engineering sit inside every GPP cartridge. PRO-FOCS 4.0 is the latest generation of Uwell's flavour-tuning system, designed to keep more of the e-liquid's aroma intact across the life of the pod rather than letting it dissipate to heat. U-squared anti-leak technology is Uwell's leak-resistance build, combining ultrasonic welding with a U-shaped airflow channel inside the pod body. The combination is rated by Uwell for 150 percent better leak resistance than the older Caliburn G3 platform.
Buy Caliburn GPP top fill pods from e-liquids.com
- Free UK delivery on orders over £20
- Same-day dispatch on orders placed before our daily cut-off
- Genuine Uwell UK stock, TPD-compliant 2ml pods
- Full 0.4, 0.6, 0.9 and 1.2 ohm range covered in top fill format
- UK customer support on 0121 272 2900
Caliburn GPP top fill pods: frequently asked questions
Which resistance GPP pod should I choose?
Pick by inhale style. The 1.2 ohm pod gives the tightest MTL draw and is closest to a cigarette pull, ideal for higher-strength nic salts. The 0.9 ohm pod is also MTL but slightly looser. The 0.6 ohm sits between MTL and RDL with more vapour. The 0.4 ohm is the loosest, designed for a warm RDL draw at higher wattages.
What is the difference between top fill and side fill GPP pods?
Top fill pods are refilled by lifting the cap on top of the pod, with the pod still seated in the device. Side fill pods are refilled by opening a port on the side of the pod, also with the pod in the device. The performance, mesh coil, capacity and resistance options are identical. The choice is purely about which refill workflow you prefer. Browse the side fill range here.
Are GPP pods compatible with my Caliburn G3?
Yes. GPP pods are backwards compatible with the Caliburn G3 series, including the G3, G3 Lite, G3 Pro and G3 Pro KOKO. They have replaced the older G3 pods as the official replacement option, with the same resistances and the same fitment.
Can I refill a GPP pod, or do I throw it away?
GPP pods are refillable. Each pod can be refilled multiple times before the mesh coil reaches the end of its life. Once the flavour drops off or you notice a slight burnt edge on the inhale, replace the whole pod. The coil is built into the pod and is not designed to be swapped out separately.
How long does a GPP top fill pod last?
Most adult vapers get one to two weeks of regular use from a single pod before flavour fades and the pod needs replacing. Heavier VG e-liquids and very sweet flavours can shorten coil life. Lighter 50/50 nic salts at the recommended wattage typically deliver the longest pod life.
What e-liquid works best with GPP top fill pods?
For the 0.9 and 1.2 ohm pods, nicotine salt e-liquids in 10mg or 20mg strengths work best, paired with a tight MTL draw. For the 0.4 and 0.6 ohm pods, 50/50 PG/VG nic salts or freebase e-liquids suit the looser draw and higher wattages. Very high VG e-liquids will work but tend to wick more slowly through the GPP coil.
Why are my GPP pods leaking?
GPP pods are built around U-squared anti-leak technology, which makes leaks rare. When they do happen, the most common causes are filling above the maximum line, drawing too hard on the inhale, using a very thin e-liquid, or seating the pod incorrectly in the device. Refill below the line, draw with a steady inhale and check the pod is fully clicked in.