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
6% OFF RRP $6.41
Nipple Brass Hexagon 1/4" male x 1/4" male BSP
15% OFF RRP $5.30
Air Hose Braided 1.9m With Quick Disconnect 1/8" x 1/8"
11% OFF RRP $29.30
Hose adaptor 1/8" male to 1/4" female
8% OFF RRP $6.50
Hose Connector 1/8" Male to 1/4" Male BSP
23% OFF RRP $5.83
Quick Disconnect Set Airbrush Male & Female 1/8" BSP
18% OFF RRP $21.55
Badger Air-Brush Co. 51-042 QD Coupler
2% OFF RRP $45.00
Hose adaptor 1/8" female to 1/4" male
8% OFF RRP $5.98
Paasche Adaptor - Converts Sparmax/Iwata Airbrushes to use Paasche Air Hoses.
On Sale 25% OFF RRP $17.50
PAASCHE AIRBRUSH - Hose adaptor 1/8" male
On Sale 27% OFF RRP $5.60
Quick Disconnect - Paasche Model A-191

Quick Disconnect - Paasche Model A-191

Now  $24.74

On Sale 37% OFF RRP $38.98
1/8" BSP 3 Way Airbrush T Adapter
41% OFF RRP $13.50
Airbrush Manifold 3 Ports 1/8" BSP
5% OFF RRP $57.00
Airbrush Manifold 3 Way 1/8" BSP
10% OFF RRP $57.00
Hexagon Sleeve Female 1/4 " BSP
17% OFF RRP $4.65
Nipple Hexagon 1/8" male x 1/8" male BSP
10% OFF RRP $4.98
Nitto Type Adaptor 1/4" BSP Male
33% OFF RRP $5.95
Nitto Type Coupling 1/4" BSP Female
24% OFF RRP $16.98
Paasche 1/8-1/4-40 Coupling - to Airbrush
On Sale 26% OFF RRP $12.20
Paasche AC-1/8 1/4 Coupling - to Compressor
On Sale
Quick Disconnect - Paasche Hex Male Adaptor With Gasket
On Sale 21% OFF RRP $12.50
Quick Disconnect Airbrush and Adaptor With Control Valve 1/8"
4% OFF RRP $22.97
Y Piece/Splitter 1/4" BSP Female
2% OFF RRP $12.25