Skip to content
Fall Ready Sale15% off everything through Nov 15FALLREADY15Tap to apply at checkout →
15% off through Nov 15FALLREADY15Tap to apply →

Products

Filters

Original price $ 2.09
Original price $ 2.09 - Original price $ 2.09
Original price $ 2.09
Current price $ 1.69
$ 1.69 - $ 1.69
Current price $ 1.69

Foster 3PDC, 1/4" 3 Series Plug Dust Cap, Plastic

Protect your 1/4" 3 Series quick plugs when not in use. The Foster 3PDC dust cap keeps dirt, chips, and moisture out of the coupling, helping preve...

View full details
Original price $ 2.09
Original price $ 2.09 - Original price $ 2.09
Original price $ 2.09
Current price $ 1.69
$ 1.69 - $ 1.69
Current price $ 1.69
Save 19% Save %
Original price $ 36.89
Original price $ 36.89 - Original price $ 36.89
Original price $ 36.89
Current price $ 29.49
$ 29.49 - $ 29.49
Current price $ 29.49

Foster 3R4015, 3/8" Hansen RL Interchange Air Coupler x 3/8" NPT, 3FRL Series, Steel

Rugged air-line connections built for the jobsite. The Foster 3R4015 is a 3/8" coupler from the 3FRL Series, which interchanges with Hansen 3/8" 3R...

View full details
Original price $ 36.89
Original price $ 36.89 - Original price $ 36.89
Original price $ 36.89
Current price $ 29.49
$ 29.49 - $ 29.49
Current price $ 29.49
Save 20% Save %
Original price $ 37.29
Original price $ 37.29 - Original price $ 37.29
Original price $ 37.29
Current price $ 29.79
$ 29.79 - $ 29.79
Current price $ 29.79

Foster 3R4905, 3/8" Hansen RL Interchange Air Coupler x 3/8" NPT, 3FRL Series, Steel

Rugged air-line connections built for the jobsite. The Foster 3R4905 is a 3/8" coupler from the 3FRL Series, which interchanges with Hansen 3/8" 3R...

View full details
Original price $ 37.29
Original price $ 37.29 - Original price $ 37.29
Original price $ 37.29
Current price $ 29.79
$ 29.79 - $ 29.79
Current price $ 29.79
Save 20% Save %
Original price $ 4.99
Original price $ 4.99 - Original price $ 4.99
Original price $ 4.99
Current price $ 3.99
$ 3.99 - $ 3.99
Current price $ 3.99

Foster 3SDC, 1/4" 3 Series Socket Dust Cap, Steel

Protect your 1/4" 3 Series quick sockets when not in use. The Foster 3SDC dust cap keeps dirt, chips, and moisture out of the coupling, helping pre...

View full details
Original price $ 4.99
Original price $ 4.99 - Original price $ 4.99
Original price $ 4.99
Current price $ 3.99
$ 3.99 - $ 3.99
Current price $ 3.99
Save 20% Save %
Original price $ 30.49
Original price $ 30.49 - Original price $ 30.49
Original price $ 30.49
Current price $ 24.39
$ 24.39 - $ 24.39
Current price $ 24.39

Foster 3W125, 1/8" Fost-Air 3-Way sleeve valve (ON-OFF-EXHAUST), brass

A low-cost ON-OFF-EXHAUST air valve. The Foster 3W125 Fost-Air 3-way sleeve valve switches air on, off, and exhausts downstream pressure, with a bo...

View full details
Original price $ 30.49
Original price $ 30.49 - Original price $ 30.49
Original price $ 30.49
Current price $ 24.39
$ 24.39 - $ 24.39
Current price $ 24.39
Save 20% Save %
Original price $ 42.09
Original price $ 42.09 - Original price $ 42.09
Original price $ 42.09
Current price $ 33.69
$ 33.69 - $ 33.69
Current price $ 33.69

Foster 3W250, 1/4" Fost-Air 3-Way sleeve valve (ON-OFF-EXHAUST), brass

A low-cost ON-OFF-EXHAUST air valve. The Foster 3W250 Fost-Air 3-way sleeve valve switches air on, off, and exhausts downstream pressure, with a bo...

View full details
Original price $ 42.09
Original price $ 42.09 - Original price $ 42.09
Original price $ 42.09
Current price $ 33.69
$ 33.69 - $ 33.69
Current price $ 33.69
Save 20% Save %
Original price $ 44.99
Original price $ 44.99 - Original price $ 44.99
Original price $ 44.99
Current price $ 35.99
$ 35.99 - $ 35.99
Current price $ 35.99

Foster 3W375, 3/8" Fost-Air 3-Way sleeve valve (ON-OFF-EXHAUST), brass

A low-cost ON-OFF-EXHAUST air valve. The Foster 3W375 Fost-Air 3-way sleeve valve switches air on, off, and exhausts downstream pressure, with a bo...

View full details
Original price $ 44.99
Original price $ 44.99 - Original price $ 44.99
Original price $ 44.99
Current price $ 35.99
$ 35.99 - $ 35.99
Current price $ 35.99
Save 20% Save %
Original price $ 57.69
Original price $ 57.69 - Original price $ 57.69
Original price $ 57.69
Current price $ 46.19
$ 46.19 - $ 46.19
Current price $ 46.19

Foster 3W500, 1/2" Fost-Air 3-Way sleeve valve (ON-OFF-EXHAUST), brass

A low-cost ON-OFF-EXHAUST air valve. The Foster 3W500 Fost-Air 3-way sleeve valve switches air on, off, and exhausts downstream pressure, with a bo...

View full details
Original price $ 57.69
Original price $ 57.69 - Original price $ 57.69
Original price $ 57.69
Current price $ 46.19
$ 46.19 - $ 46.19
Current price $ 46.19
Save 20% Save %
Original price $ 29.39 - Original price $ 29.39
Original price
$ 29.39
$ 29.39 - $ 29.39
Current price $ 29.39

Foster 4 Series, Reusable Hose Barb, 3/8" Industrial Coupler x 1/4" ID x 1/2" OD Hose, SB3-4

Series: 4 Series Part Number:  SB3-4 Interchange: Industrial Interchange Body: 3/8" Industrial Coupler (Manual) Thread: 1/4" ID X 1/2" OD ...

View full details
Original price $ 29.39 - Original price $ 29.39
Original price
$ 29.39
$ 29.39 - $ 29.39
Current price $ 29.39
Sold out
Original price $ 30.79 - Original price $ 30.79
Original price
$ 30.79
$ 30.79 - $ 30.79
Current price $ 30.79

Foster 4 Series, Reusable Hose Barb, 3/8" Industrial Coupler x 1/4" ID x 9/16" OD Hose, SB5-4

Series: 4 Series Part Number:  SB5-4 Interchange: Industrial Interchange Body: 3/8" Industrial Coupler (Manual) Thread: 1/4" ID X 9/16" OD...

View full details
Original price $ 30.79 - Original price $ 30.79
Original price
$ 30.79
$ 30.79 - $ 30.79
Current price $ 30.79
Sold out
Original price $ 50.39
Original price $ 50.39 - Original price $ 50.39
Original price $ 50.39
Current price $ 40.29
$ 40.29 - $ 40.29
Current price $ 40.29

Foster 4 Series, Reusable Hose Barb, 3/8" Industrial Coupler x 3/8" ID x 5/8" OD Hose, FMSD7-4

Series: 4 Series Part Number:  FMSD7-4 Interchange: Industrial Interchange Body: 3/8" Industrial Coupler (Automatic) Thread: 3/8" ID X 5/8" ...

View full details
Original price $ 50.39
Original price $ 50.39 - Original price $ 50.39
Original price $ 50.39
Current price $ 40.29
$ 40.29 - $ 40.29
Current price $ 40.29
Save 20% Save %
Original price $ 13.49 - Original price $ 13.49
Original price
$ 13.49
$ 13.49 - $ 13.49
Current price $ 13.49

Foster 4 Series, Reusable Hose Barb, 3/8" Industrial Plug x 1/4" ID x 1/2" OD Hose, PB3-4

Series: 4 Series Part Number:  PB3-4 Interchange: Industrial Interchange Body: 3/8" Industrial Plug Thread: 1/4" ID X 1/2" OD (Reusable Ho...

View full details
Original price $ 13.49 - Original price $ 13.49
Original price
$ 13.49
$ 13.49 - $ 13.49
Current price $ 13.49
Sold out
Original price $ 14.29 - Original price $ 14.29
Original price
$ 14.29
$ 14.29 - $ 14.29
Current price $ 14.29

Foster 4 Series, Reusable Hose Barb, 3/8" Industrial Plug x 1/4" ID x 5/8" OD Hose, PB7-4

Series: 4 Series Part Number:  PB7-4 Interchange: Industrial Interchange Body: 3/8" Industrial Plug Thread: 1/4" ID X 5/8" OD (Reusable Ho...

View full details
Original price $ 14.29 - Original price $ 14.29
Original price
$ 14.29
$ 14.29 - $ 14.29
Current price $ 14.29
Sold out
Original price $ 12.99 - Original price $ 12.99
Original price
$ 12.99
$ 12.99 - $ 12.99
Current price $ 12.99

Foster 4 Series, Reusable Hose Barb, 3/8" Industrial Plug x 3/8" ID x 11/16" OD Hose, PD9-4

Series: 4 Series Part Number:  PD9-4 Interchange: Industrial Interchange Body: 3/8" Industrial Plug Thread: 3/8" ID X 11/16" OD (Reusable ...

View full details
Original price $ 12.99 - Original price $ 12.99
Original price
$ 12.99
$ 12.99 - $ 12.99
Current price $ 12.99
Sold out
Original price $ 12.89 - Original price $ 12.89
Original price
$ 12.89
$ 12.89 - $ 12.89
Current price $ 12.89

Foster 4 Series, Reusable Hose Barb, 3/8" Industrial Plug x 3/8" ID x 5/8" OD Hose, PD7-4

Series: 4 Series Part Number:  PD7-4 Interchange: Industrial Interchange Body: 3/8" Industrial Plug Thread: 3/8" ID X 5/8" OD (Reusable Ho...

View full details
Original price $ 12.89 - Original price $ 12.89
Original price
$ 12.89
$ 12.89 - $ 12.89
Current price $ 12.89
Sold out
Original price $ 14.19 - Original price $ 14.19
Original price
$ 14.19
$ 14.19 - $ 14.19
Current price $ 14.19

Foster 4 Series, Reusable Hose Barb, 3/8" Industrial Plug x 3/8" ID x3/4" OD Hose, PD11-4

Series: 4 Series Part Number:  PD11-4 Interchange: Industrial Interchange Body: 3/8" Industrial Plug Thread: 3/8" ID X 3/4" OD (Reusable H...

View full details
Original price $ 14.19 - Original price $ 14.19
Original price
$ 14.19
$ 14.19 - $ 14.19
Current price $ 14.19
Sold out
Original price $ 5.39
Original price $ 5.39 - Original price $ 5.39
Original price $ 5.39
Current price $ 4.29
$ 4.29 - $ 4.29
Current price $ 4.29

Foster 40-4, 3/8" Industrial Plug x 1/4" Male NPT, 4 Series, Steel

Reliable, leak-free 3/8" connections for air and fluid lines. The Foster 40-4 is a Steel 3/8" industrial plug from the Foster 4 Series — a high-flo...

View full details
Original price $ 5.39
Original price $ 5.39 - Original price $ 5.39
Original price $ 5.39
Current price $ 4.29
$ 4.29 - $ 4.29
Current price $ 4.29
Save 20% Save %
Original price $ 5.39
Original price $ 5.39 - Original price $ 5.39
Original price $ 5.39
Current price $ 4.29
$ 4.29 - $ 4.29
Current price $ 4.29

Foster 40-4, 4 Series, Industrial Plug, 1/4" Male NPT, Steel

Reliable, leak-free 3/8" connections for air and fluid lines. The Foster 40-4 is a Steel 3/8" industrial plug from the Foster 4 Series — a high-flo...

View full details
Original price $ 5.39
Original price $ 5.39 - Original price $ 5.39
Original price $ 5.39
Current price $ 4.29
$ 4.29 - $ 4.29
Current price $ 4.29
Save 20% Save %
Original price $ 9.19
Original price $ 9.19 - Original price $ 9.19
Original price $ 9.19
Current price $ 7.29
$ 7.29 - $ 7.29
Current price $ 7.29

Foster 40-4B, 3/8" Industrial Plug x 1/4" Male NPT, 4 Series, Brass

Reliable, leak-free 3/8" connections for air and fluid lines. The Foster 40-4B is a Brass 3/8" industrial plug from the Foster 4 Series — a high-fl...

View full details
Original price $ 9.19
Original price $ 9.19 - Original price $ 9.19
Original price $ 9.19
Current price $ 7.29
$ 7.29 - $ 7.29
Current price $ 7.29
Save 21% Save %
Original price $ 9.19
Original price $ 9.19 - Original price $ 9.19
Original price $ 9.19
Current price $ 7.29
$ 7.29 - $ 7.29
Current price $ 7.29

Foster 40-4B, 4 Series, Industrial Plug, 1/4" Male NPT, Brass

Reliable, leak-free 3/8" connections for air and fluid lines. The Foster 40-4B is a Brass 3/8" industrial plug from the Foster 4 Series — a high-fl...

View full details
Original price $ 9.19
Original price $ 9.19 - Original price $ 9.19
Original price $ 9.19
Current price $ 7.29
$ 7.29 - $ 7.29
Current price $ 7.29
Save 21% Save %
Original price $ 10.49
Original price $ 10.49 - Original price $ 10.49
Original price $ 10.49
Current price $ 8.39
$ 8.39 - $ 8.39
Current price $ 8.39

Foster 40-4S/S, 3/8" Industrial Plug x 1/4" Male NPT, 4 Series, 303 Stainless

Reliable, leak-free 3/8" connections for air and fluid lines. The Foster 40-4S/S is a 303 Stainless 3/8" industrial plug from the Foster 4 Series —...

View full details
Original price $ 10.49
Original price $ 10.49 - Original price $ 10.49
Original price $ 10.49
Current price $ 8.39
$ 8.39 - $ 8.39
Current price $ 8.39
Save 20% Save %
Original price $ 23.39
Original price $ 23.39 - Original price $ 23.39
Original price $ 23.39
Current price $ 18.79
$ 18.79 - $ 18.79
Current price $ 18.79

Foster 4004, 3/8" Industrial Coupler x 1/4" Female NPT, 4 Series, Brass/Steel

Reliable, leak-free 3/8" connections for air and fluid lines. The Foster 4004 is a Brass/Steel 3/8" industrial coupler from the Foster 4 Series — a...

View full details
Original price $ 23.39
Original price $ 23.39 - Original price $ 23.39
Original price $ 23.39
Current price $ 18.79
$ 18.79 - $ 18.79
Current price $ 18.79
Save 20% Save %
Original price $ 23.39
Original price $ 23.39 - Original price $ 23.39
Original price $ 23.39
Current price $ 18.79
$ 18.79 - $ 18.79
Current price $ 18.79

Foster 4004, 4 Series, Industrial Coupler, Manual, 1/4" Female NPT, Brass, Steel

Reliable, leak-free 3/8" connections for air and fluid lines. The Foster 4004 is a Brass/Steel 3/8" industrial coupler from the Foster 4 Series — a...

View full details
Original price $ 23.39
Original price $ 23.39 - Original price $ 23.39
Original price $ 23.39
Current price $ 18.79
$ 18.79 - $ 18.79
Current price $ 18.79
Save 20% Save %
Original price $ 34.09
Original price $ 34.09 - Original price $ 34.09
Original price $ 34.09
Current price $ 27.29
$ 27.29 - $ 27.29
Current price $ 27.29

Foster 4015, 1/2" Industrial Coupler x 1/4" Female NPT, 5 Series, Brass/Steel

Reliable, leak-free 1/2" connections for high-flow air and fluid lines. The Foster 4015 is a Brass/Steel 1/2" industrial coupler from the Foster 5 ...

View full details
Original price $ 34.09
Original price $ 34.09 - Original price $ 34.09
Original price $ 34.09
Current price $ 27.29
$ 27.29 - $ 27.29
Current price $ 27.29
Save 20% Save %