Air Fittings

Please Note: All fractional sizes that are shown with our air fittings are BSP (They are not actual size - Also please note our fittings are not NPT which is American and not interchangeable due to the differences in thread forms)

We have a rough guide to working out your air fitting with some measurements below that will help.

1⁄8" BSP male outside thread diameter is approx. 3/8" (9.5 mm) in diameter 
1⁄8" BSP female inside thread diameter is approx. 11/32" (8.8 mm) in diameter

1⁄4" BSP male outside thread diameter is approx. 1/2" (13 mm) in diameter
1⁄4" BSP female inside thread diameter is approx. 15/32" (11.8 mm) in diameter

I hope this helps as it causes great confusion

Also note that Paasche, Badger and Aztec have their own thread size off the airbrush so you will need either an adaptor or a hose that is that particular brand. Iwata, Sparmax and Harder & Steenbeck have a standard size of 1/8" BSP. Its confusing and many of our customers have problems getting their heads around it all. We get these questions every day so sometimes its best to give us the brand and let us work it out for you. You can also email and image to us against a ruler or a coin and this way we can most likely work out the size.



Quick Disconnect Adaptor 1/8" Male

Quick Disconnect Adaptor 1/8" Male

Now  $5.21

On Sale 19% OFF RRP $6.41
PAASCHE AIRBRUSH - Hose adaptor 1/8" male
On Sale 16% OFF RRP $5.60
Quick Disconnect - Paasche Hex Male Adaptor With Gasket
On Sale 9% OFF RRP $12.50
Quick Disconnect Set Airbrush Male & Female 1/8" BSP
On Sale 30% OFF RRP $21.55
Hose adaptor 1/8" female to 1/4" male

Hose adaptor 1/8" female to 1/4" male

Now  $5.23

On Sale 13% OFF RRP $5.98
Airbrush Manifold 3 Way 1/8" BSP

Airbrush Manifold 3 Way 1/8" BSP

Now  $46.55

On Sale 18% OFF RRP $57.00
Airbrush Manifold 5 Way 1/8"BSP

Airbrush Manifold 5 Way 1/8"BSP

Now  $66.48

On Sale 8% OFF RRP $72.00
Badger Air-Brush Co. 51-042 QD Coupler

Badger Air-Brush Co. 51-042 QD Coupler

Now  $37.98

On Sale 16% OFF RRP $45.00
Hose adaptor 1/8" male to 1/4" female

Hose adaptor 1/8" male to 1/4" female

Now  $5.68

On Sale 13% OFF RRP $6.50
Quick Disconnect Airbrush and Adaptor With Control Valve 1/8"
On Sale 17% OFF RRP $22.97
1/8" BSP 3 Way Airbrush T Adapter

1/8" BSP 3 Way Airbrush T Adapter

Now  $7.58

On Sale 44% OFF RRP $13.50
Air Hose Braided 1.9m With Quick Disconnect 1/8" x 1/8"
On Sale 16% OFF RRP $29.30
AZTEK AIRBRUSH - Hose adaptor 1/8" male

AZTEK AIRBRUSH - Hose adaptor 1/8" male

Now  $5.21

On Sale
BADGER AIRBRUSH - Hose adaptor (1/8" x 5mm)
On Sale
Badger to Paasche Airline adaptor

Badger to Paasche Airline adaptor

Now  $9.39

On Sale
Butterfly Hose Adaptor 1/8" Male To 1/8" Female
On Sale
Hexagon Sleeve Female 1/4 " BSP

Hexagon Sleeve Female 1/4 " BSP

Now  $3.66

On Sale 21% OFF RRP $4.65
Hexagon Sleeve Female 1/8 " BSP

Hexagon Sleeve Female 1/8 " BSP

Now  $4.72

On Sale
Hose connector 1/4" female to 1/4" male

Hose connector 1/4" female to 1/4" male

Now  $7.35

On Sale
Hose Connector 1/8" Male to 1/4" Male BSP
On Sale 27% OFF RRP $5.83
Iwata DR1 - 2spray Mini Spray Gun or Air Compressor Regulator​
On Sale
Nipple Brass Hexagon 1/4" male x 1/4" male BSP
On Sale 19% OFF RRP $5.30
Nipple Hexagon 1/8" male x 1/8" male BSP
On Sale 14% OFF RRP $4.98
Nitto Type Adaptor 1/4" BSP Male

Nitto Type Adaptor 1/4" BSP Male

Now  $3.78

On Sale 36% OFF RRP $5.95