BT-7006S or BT-7006B, what different of them?

It is just different material of body. Other design is same.

And also same working feature.

Description:

When washing your vehicle, do you feel you don’t have adequate lubrication or cleaning power because the suds run off the paint? You’ll never experience that with the cleaning gun Foam Gun. The gun allows you to presoak the vehicle with clinging foam. The foam stays where it’s sprayed. As you wash the vehicle, there is a layer of light foam between your mitt and the paint. With the cleaning gun Foam Gun your shampoo foam won’t fall flat.

The Foam Gun only works with an air compressor capable of producing 60-90 psi of air pressure. The higher the air pressure, the greater the foam generated by the gun. The unique barrel on the gun mixes the shampoo and pressurized air to create a blizzard of foam. You’ll be amazed! The amount of foam is regulated by a pressure valve on the gun. Use as little or as much foam as you need.

For example as below:

About product description:

Abou the item number please check the sheet.

BT-7007SAJ:dry cleaning gun,S(Silvery Forged Alu);A(BearingType);J(Asia Adaptor)

BT-7007BBE:dry cleaning gun,B(Black Casting Alu);B(Tube Type);E(Europe Adaptor)

BT-7002: it is include forged Alu and Casting Alu body, also have Bearing and tube types. And 3 type adaptor. The item number have BT-7002 (body S or B) and Bearing or tube, with 3 types adaptor.

BT-700&: it is include forged Alu and Casting Alu body, also have Bearing and tube types. And 3 type adaptor. The item number have BT-7007 (body S or B) and Bearing or tube, with 3 types adaptor.