Question 1

can i use this with my scuba tank aluminium 80 3000psi?

Accepted Answer

Since this question got mixed answers, I'll confirm for anyone else reading it: This is a standard (albeit cheaply-made) regulator. You can use it for SCUBA as a primary second stage, or a safe-second octopus. It can also be used for surface-supplied diving. It comes with a barb-fitting adapter, but under that is a 3/8th O-ring fitting that connects to the intermediate pressure ports on any first stage regulator. It is set at 145psi when you receive it, but you can easily adjust the working pressure to whatever your first-stage puts out for easy breathing effort. There are lots of video on youtube showing how, it is standardized on most regulators. Dive shops will also adjust it more precisely for you, however they honestly may not touch this one because of the brand/cheapness.

Question 2

What is the hose ID (internal diameter)?

Accepted Answer

Not sure of spec. Standard scuba

Question 3

What is the thread type/size on the end of the hose, with the barbed fitting removed?

Accepted Answer

The thread type/size haven't use professional ruler to measure.  Suitable for 8MM diving tube. This item include the the "barbed fitting"Connector, it used to connect the diving tube, if you remove it can to connect the diving Pressure cylinders.

Question 4

Why does this regulator does not have a purge valve?

Accepted Answer

If you mean a purge button it does. You press the round logo on the front of the regulator to push on the diaphragm inside and purge it.

ASIN	B01AL6UN22
Best Sellers Rank	#410,418 in Sports & Outdoors ( See Top 100 in Sports & Outdoors ) #239 in Diving Regulator Accessories
Brand Name	Hanperal
Color	yellow
Customer Reviews	4.4 4.4 out of 5 stars (420)
Date First Available	January 14, 2016
Item Package Dimensions L x W x H	9.25 x 5.63 x 3.46 inches
Item Weight	16 ounces
Manufacturer	Hanperal
Material	Pc, Abs
Package Weight	0.38 Kilograms
Part Number	HR-240191

145 PSI Explorer Scuba Diving Dive 2nd Stage Regulator Octopus Hookah, Hookah Dive Regulator

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Specifications

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