I could not find any mention of the SmokTech 510 Universal Dual Coil 5mL PP Tank here at ECF but this is a nice tank. I purchased mine at ECBlend.com. I thought I would do a short review.
The picture does not show it well but this tank is a very pretty chrome at the top and the bottom. These are advertized to be 6ml tanks. However, ECBlend says that the tank holds 5ml while the cartomizer holds the other 1ml of e-fluid. The comes with a 1.5 ohm dual coil cartomizer with 510 connection so it fits the eGo style battery nicely. It has a unique (I think) way of locking the cartomizer in place. The bottom of the tank screws off and the Smok Tech cartomizer is "keyed" to fit in the bottom of the tank and the screw on end hold the cartomizer in place. The cartomizer will not come loose and slip out of the tank. The picture below shows the cartomizer pulled out slightly to see the key. The picture below that shows the cartomizer fully inserted. The 3rd picture shows the tank with the bottom screwed into place. The screw on piece of the tank holds the cartomizer keeping the carto from pulling out.
The cartomizer that comes with the tank is a dual coil 1.5 ohm carto. The dual coils make lots of vapor but do take a lot of amps. Batteries will lose power about twice as fast as they will with single coile cartos. ECBlend offers the dual coil Smok Tech cartos that have 2 holes in 1.5, 2.0, 2.5, and 3.0 ohm configurations. All are keyed to fit the Smok Tech tank perfectly.
Smok Tech also offers single coil cartos. I have replaced the stock carto with a SmokTECH 510 2ohm DCT Single Coil Cartomizer. It works very well, fits perfectly in the Smok Tech tank, and lasts about twice as long on the same battery.
I purchased the single coil cartomizer at LiteCigUSA.net. LiteCigUSA offers:
Dual Coil 1.5 ohm
Dual Coil 2.0 ohm
Single Coil 2.0 ohm, and
Single Coil 3.0 ohm
All of these are made by Smok Tech and are keyed to fit the Smok Tech tank.
I think the tank looks nice on the 900mAh eGo style battery. It is shown below with the SmokTech - eGo Chrome Cone Adapter for 3.5mL Tank. the adapter just covers up the threads on the battery and makes a nice looking transition to the tank.
In all, I am very impressed with this tank. They come in different colors but I like this smokey color that I purchased.
I can also add that I have made multiple purchases at both ECBlend and LiteCigUSA. Both of these places have great prices, great customer service, and fast shipment at good shipping prices. I recommend either as reputable stores.
klondikes

The picture does not show it well but this tank is a very pretty chrome at the top and the bottom. These are advertized to be 6ml tanks. However, ECBlend says that the tank holds 5ml while the cartomizer holds the other 1ml of e-fluid. The comes with a 1.5 ohm dual coil cartomizer with 510 connection so it fits the eGo style battery nicely. It has a unique (I think) way of locking the cartomizer in place. The bottom of the tank screws off and the Smok Tech cartomizer is "keyed" to fit in the bottom of the tank and the screw on end hold the cartomizer in place. The cartomizer will not come loose and slip out of the tank. The picture below shows the cartomizer pulled out slightly to see the key. The picture below that shows the cartomizer fully inserted. The 3rd picture shows the tank with the bottom screwed into place. The screw on piece of the tank holds the cartomizer keeping the carto from pulling out.



The cartomizer that comes with the tank is a dual coil 1.5 ohm carto. The dual coils make lots of vapor but do take a lot of amps. Batteries will lose power about twice as fast as they will with single coile cartos. ECBlend offers the dual coil Smok Tech cartos that have 2 holes in 1.5, 2.0, 2.5, and 3.0 ohm configurations. All are keyed to fit the Smok Tech tank perfectly.
Smok Tech also offers single coil cartos. I have replaced the stock carto with a SmokTECH 510 2ohm DCT Single Coil Cartomizer. It works very well, fits perfectly in the Smok Tech tank, and lasts about twice as long on the same battery.
I purchased the single coil cartomizer at LiteCigUSA.net. LiteCigUSA offers:
Dual Coil 1.5 ohm
Dual Coil 2.0 ohm
Single Coil 2.0 ohm, and
Single Coil 3.0 ohm
All of these are made by Smok Tech and are keyed to fit the Smok Tech tank.
I think the tank looks nice on the 900mAh eGo style battery. It is shown below with the SmokTech - eGo Chrome Cone Adapter for 3.5mL Tank. the adapter just covers up the threads on the battery and makes a nice looking transition to the tank.

In all, I am very impressed with this tank. They come in different colors but I like this smokey color that I purchased.
I can also add that I have made multiple purchases at both ECBlend and LiteCigUSA. Both of these places have great prices, great customer service, and fast shipment at good shipping prices. I recommend either as reputable stores.
klondikes