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

Best Sellers

Our most popular couplers, hose, clamps, and irrigation parts. Updated automatically based on what customers actually buy.

Filters

Foster BLH1B, 1/8" ISO-B Hydraulic Coupler x 1/8" Female NPT, ISO-B Series, Ball Lock, Brass Save 20% Save %
$ 406.00
$ 406.00 - $ 406.00
$ 406.00
$ 325.00
$ 325.00 - $ 325.00
$ 325.00

Foster K4S, 1/2" ISO-B Hydraulic Plug x 1/2" Female NPT, ISO-B Series, Plated Steel

The most widely used industrial hydraulic quick coupling, compatible with ISO 7241-1 Series B. The Foster K4S is a steel 1/2" plug in the FHK Serie...

View full details
$ 406.00
$ 406.00 - $ 406.00
$ 406.00
$ 325.00
$ 325.00 - $ 325.00
$ 325.00
Save 20% Save %
Foster BLH1B, 1/8" ISO-B Hydraulic Coupler x 1/8" Female NPT, ISO-B Series, Ball Lock, Brass Save 20% Save %
$ 523.00
$ 523.00 - $ 523.00
$ 523.00
$ 420.00
$ 420.00 - $ 420.00
$ 420.00

Foster K4BLV, 1/2" ISO-B Hydraulic Plug x 1/2" Female NPT, ISO-B Series, Less Valve, Brass

The most widely used industrial hydraulic quick coupling, compatible with ISO 7241-1 Series B. The Foster K4BLV is a brass 1/2" plug in the FHK Ser...

View full details
$ 523.00
$ 523.00 - $ 523.00
$ 523.00
$ 420.00
$ 420.00 - $ 420.00
$ 420.00
Save 20% Save %
Foster BLH1B, 1/8" ISO-B Hydraulic Coupler x 1/8" Female NPT, ISO-B Series, Ball Lock, Brass Save 20% Save %
$ 608.00
$ 608.00 - $ 608.00
$ 608.00
$ 488.00
$ 488.00 - $ 488.00
$ 488.00

Foster K4B-103, 1/2" ISO-B Hydraulic Plug x 1/2" Female NPT, ISO-B Series, EPDM Seal, Brass

The most widely used industrial hydraulic quick coupling, compatible with ISO 7241-1 Series B. The Foster K4B-103 is a brass 1/2" plug in the FHK S...

View full details
$ 608.00
$ 608.00 - $ 608.00
$ 608.00
$ 488.00
$ 488.00 - $ 488.00
$ 488.00
Save 20% Save %
Foster BLH1B, 1/8" ISO-B Hydraulic Coupler x 1/8" Female NPT, ISO-B Series, Ball Lock, Brass Save 20% Save %
$ 631.00
$ 631.00 - $ 631.00
$ 631.00
$ 506.00
$ 506.00 - $ 506.00
$ 506.00

Foster K4B-102, 1/2" ISO-B Hydraulic Plug x 1/2" Female NPT, ISO-B Series, Neoprene Seal, Brass

The most widely used industrial hydraulic quick coupling, compatible with ISO 7241-1 Series B. The Foster K4B-102 is a brass 1/2" plug in the FHK S...

View full details
$ 631.00
$ 631.00 - $ 631.00
$ 631.00
$ 506.00
$ 506.00 - $ 506.00
$ 506.00
Save 20% Save %
Foster BLH1B, 1/8" ISO-B Hydraulic Coupler x 1/8" Female NPT, ISO-B Series, Ball Lock, Brass
Save 20% Save %
$ 648.00
$ 648.00 - $ 648.00
$ 648.00
$ 520.00
$ 520.00 - $ 520.00
$ 520.00

Foster K4B-101, 1/2" ISO-B Hydraulic Plug x 1/2" Female NPT, ISO-B Series, Viton Seal, Brass

The most widely used industrial hydraulic quick coupling, compatible with ISO 7241-1 Series B. The Foster K4B-101 is a brass 1/2" plug in the FHK S...

View full details
$ 648.00
$ 648.00 - $ 648.00
$ 648.00
$ 520.00
$ 520.00 - $ 520.00
$ 520.00
Save 20% Save %
Foster BLH1B, 1/8" ISO-B Hydraulic Coupler x 1/8" Female NPT, ISO-B Series, Ball Lock, Brass
Save 20% Save %
$ 505.00
$ 505.00 - $ 505.00
$ 505.00
$ 404.00
$ 404.00 - $ 404.00
$ 404.00

Foster K4B, 1/2" ISO-B Hydraulic Plug x 1/2" Female NPT, ISO-B Series, Brass

The most widely used industrial hydraulic quick coupling, compatible with ISO 7241-1 Series B. The Foster K4B is a brass 1/2" plug in the FHK Serie...

View full details
$ 505.00
$ 505.00 - $ 505.00
$ 505.00
$ 404.00
$ 404.00 - $ 404.00
$ 404.00
Save 20% Save %
Foster BLH1B, 1/8" ISO-B Hydraulic Coupler x 1/8" Female NPT, ISO-B Series, Ball Lock, Brass
Save 20% Save %
$ 314.00
$ 314.00 - $ 314.00
$ 314.00
$ 251.00
$ 251.00 - $ 251.00
$ 251.00

Foster K3SLV, 3/8" ISO-B Hydraulic Plug x 3/8" Female NPT, ISO-B Series, Less Valve, Plated Steel

The most widely used industrial hydraulic quick coupling, compatible with ISO 7241-1 Series B. The Foster K3SLV is a steel 3/8" plug in the FHK Ser...

View full details
$ 314.00
$ 314.00 - $ 314.00
$ 314.00
$ 251.00
$ 251.00 - $ 251.00
$ 251.00
Save 20% Save %
Foster BLH1B, 1/8" ISO-B Hydraulic Coupler x 1/8" Female NPT, ISO-B Series, Ball Lock, Brass
Save 20% Save %
$ 465.00
$ 465.00 - $ 465.00
$ 465.00
$ 372.00
$ 372.00 - $ 372.00
$ 372.00

Foster K3S8, 3/8" ISO-B Hydraulic Plug x 3/4"-16 SAE, ISO-B Series, Plated Steel

The most widely used industrial hydraulic quick coupling, compatible with ISO 7241-1 Series B. The Foster K3S8 is a steel 3/8" plug in the FHK Seri...

View full details
$ 465.00
$ 465.00 - $ 465.00
$ 465.00
$ 372.00
$ 372.00 - $ 372.00
$ 372.00
Save 20% Save %
Foster BLH1B, 1/8" ISO-B Hydraulic Coupler x 1/8" Female NPT, ISO-B Series, Ball Lock, Brass
Save 20% Save %
$ 387.00
$ 387.00 - $ 387.00
$ 387.00
$ 310.00
$ 310.00 - $ 310.00
$ 310.00

Foster K3S-104, 3/8" ISO-B Hydraulic Plug x 3/8" Female NPT, ISO-B Series, Silicone Seal, Plated Steel

The most widely used industrial hydraulic quick coupling, compatible with ISO 7241-1 Series B. The Foster K3S-104 is a steel 3/8" plug in the FHK S...

View full details
$ 387.00
$ 387.00 - $ 387.00
$ 387.00
$ 310.00
$ 310.00 - $ 310.00
$ 310.00
Save 20% Save %
Foster BLH1B, 1/8" ISO-B Hydraulic Coupler x 1/8" Female NPT, ISO-B Series, Ball Lock, Brass
Save 20% Save %
$ 374.00
$ 374.00 - $ 374.00
$ 374.00
$ 299.00
$ 299.00 - $ 299.00
$ 299.00

Foster K3S-103, 3/8" ISO-B Hydraulic Plug x 3/8" Female NPT, ISO-B Series, EPDM Seal, Plated Steel

The most widely used industrial hydraulic quick coupling, compatible with ISO 7241-1 Series B. The Foster K3S-103 is a steel 3/8" plug in the FHK S...

View full details
$ 374.00
$ 374.00 - $ 374.00
$ 374.00
$ 299.00
$ 299.00 - $ 299.00
$ 299.00
Save 20% Save %
Foster BLH1B, 1/8" ISO-B Hydraulic Coupler x 1/8" Female NPT, ISO-B Series, Ball Lock, Brass
Save 20% Save %
$ 384.00
$ 384.00 - $ 384.00
$ 384.00
$ 306.00
$ 306.00 - $ 306.00
$ 306.00

Foster K3S-102, 3/8" ISO-B Hydraulic Plug x 3/8" Female NPT, ISO-B Series, Neoprene Seal, Plated Steel

The most widely used industrial hydraulic quick coupling, compatible with ISO 7241-1 Series B. The Foster K3S-102 is a steel 3/8" plug in the FHK S...

View full details
$ 384.00
$ 384.00 - $ 384.00
$ 384.00
$ 306.00
$ 306.00 - $ 306.00
$ 306.00
Save 20% Save %
Foster BLH1B, 1/8" ISO-B Hydraulic Coupler x 1/8" Female NPT, ISO-B Series, Ball Lock, Brass
Save 20% Save %
$ 397.00
$ 397.00 - $ 397.00
$ 397.00
$ 318.00
$ 318.00 - $ 318.00
$ 318.00

Foster K3S-101, 3/8" ISO-B Hydraulic Plug x 3/8" Female NPT, ISO-B Series, Viton Seal, Plated Steel

The most widely used industrial hydraulic quick coupling, compatible with ISO 7241-1 Series B. The Foster K3S-101 is a steel 3/8" plug in the FHK S...

View full details
$ 397.00
$ 397.00 - $ 397.00
$ 397.00
$ 318.00
$ 318.00 - $ 318.00
$ 318.00
Save 20% Save %
Foster BLH1B, 1/8" ISO-B Hydraulic Coupler x 1/8" Female NPT, ISO-B Series, Ball Lock, Brass
Save 20% Save %
$ 848.00
$ 848.00 - $ 848.00
$ 848.00
$ 678.00
$ 678.00 - $ 678.00
$ 678.00

Foster K3S/S-103, 3/8" ISO-B Hydraulic Plug x 3/8" Female NPT, ISO-B Series, EPDM Seal, 303 Stainless Steel

The most widely used industrial hydraulic quick coupling, compatible with ISO 7241-1 Series B. The Foster K3S/S-103 is a 303 stainless 3/8" plug in...

View full details
$ 848.00
$ 848.00 - $ 848.00
$ 848.00
$ 678.00
$ 678.00 - $ 678.00
$ 678.00
Save 20% Save %
Foster BLH1B, 1/8" ISO-B Hydraulic Coupler x 1/8" Female NPT, ISO-B Series, Ball Lock, Brass
Save 20% Save %
$ 852.00
$ 852.00 - $ 852.00
$ 852.00
$ 680.00
$ 680.00 - $ 680.00
$ 680.00

Foster K3S/S-101, 3/8" ISO-B Hydraulic Plug x 3/8" Female NPT, ISO-B Series, Viton Seal, 303 Stainless Steel

The most widely used industrial hydraulic quick coupling, compatible with ISO 7241-1 Series B. The Foster K3S/S-101 is a 303 stainless 3/8" plug in...

View full details
$ 852.00
$ 852.00 - $ 852.00
$ 852.00
$ 680.00
$ 680.00 - $ 680.00
$ 680.00
Save 20% Save %
Foster BLH1B, 1/8" ISO-B Hydraulic Coupler x 1/8" Female NPT, ISO-B Series, Ball Lock, Brass
Save 20% Save %
$ 767.00
$ 767.00 - $ 767.00
$ 767.00
$ 614.00
$ 614.00 - $ 614.00
$ 614.00

Foster K3S/S, 3/8" ISO-B Hydraulic Plug x 3/8" Female NPT, ISO-B Series, 303 Stainless Steel

The most widely used industrial hydraulic quick coupling, compatible with ISO 7241-1 Series B. The Foster K3S/S is a 303 stainless 3/8" plug in the...

View full details
$ 767.00
$ 767.00 - $ 767.00
$ 767.00
$ 614.00
$ 614.00 - $ 614.00
$ 614.00
Save 20% Save %
Foster BLH1B, 1/8" ISO-B Hydraulic Coupler x 1/8" Female NPT, ISO-B Series, Ball Lock, Brass
Save 20% Save %
$ 314.00
$ 314.00 - $ 314.00
$ 314.00
$ 251.00
$ 251.00 - $ 251.00
$ 251.00

Foster K3S, 3/8" ISO-B Hydraulic Plug x 3/8" Female NPT, ISO-B Series, Plated Steel

The most widely used industrial hydraulic quick coupling, compatible with ISO 7241-1 Series B. The Foster K3S is a steel 3/8" plug in the FHK Serie...

View full details
$ 314.00
$ 314.00 - $ 314.00
$ 314.00
$ 251.00
$ 251.00 - $ 251.00
$ 251.00
Save 20% Save %
Foster BLH1B, 1/8" ISO-B Hydraulic Coupler x 1/8" Female NPT, ISO-B Series, Ball Lock, Brass
Save 20% Save %
$ 421.00
$ 421.00 - $ 421.00
$ 421.00
$ 338.00
$ 338.00 - $ 338.00
$ 338.00

Foster K3B-103, 3/8" ISO-B Hydraulic Plug x 3/8" Female NPT, ISO-B Series, EPDM Seal, Brass

The most widely used industrial hydraulic quick coupling, compatible with ISO 7241-1 Series B. The Foster K3B-103 is a brass 3/8" plug in the FHK S...

View full details
$ 421.00
$ 421.00 - $ 421.00
$ 421.00
$ 338.00
$ 338.00 - $ 338.00
$ 338.00
Save 20% Save %
Foster BLH1B, 1/8" ISO-B Hydraulic Coupler x 1/8" Female NPT, ISO-B Series, Ball Lock, Brass
Save 20% Save %
$ 450.00
$ 450.00 - $ 450.00
$ 450.00
$ 361.00
$ 361.00 - $ 361.00
$ 361.00

Foster K3B-102, 3/8" ISO-B Hydraulic Plug x 3/8" Female NPT, ISO-B Series, Neoprene Seal, Brass

The most widely used industrial hydraulic quick coupling, compatible with ISO 7241-1 Series B. The Foster K3B-102 is a brass 3/8" plug in the FHK S...

View full details
$ 450.00
$ 450.00 - $ 450.00
$ 450.00
$ 361.00
$ 361.00 - $ 361.00
$ 361.00
Save 20% Save %
Foster BLH1B, 1/8" ISO-B Hydraulic Coupler x 1/8" Female NPT, ISO-B Series, Ball Lock, Brass
Save 20% Save %
$ 461.00
$ 461.00 - $ 461.00
$ 461.00
$ 370.00
$ 370.00 - $ 370.00
$ 370.00

Foster K3B-101, 3/8" ISO-B Hydraulic Plug x 3/8" Female NPT, ISO-B Series, Viton Seal, Brass

The most widely used industrial hydraulic quick coupling, compatible with ISO 7241-1 Series B. The Foster K3B-101 is a brass 3/8" plug in the FHK S...

View full details
$ 461.00
$ 461.00 - $ 461.00
$ 461.00
$ 370.00
$ 370.00 - $ 370.00
$ 370.00
Save 20% Save %
Foster BLH1B, 1/8" ISO-B Hydraulic Coupler x 1/8" Female NPT, ISO-B Series, Ball Lock, Brass
Save 20% Save %
$ 344.00
$ 344.00 - $ 344.00
$ 344.00
$ 276.00
$ 276.00 - $ 276.00
$ 276.00

Foster K3B, 3/8" ISO-B Hydraulic Plug x 3/8" Female NPT, ISO-B Series, Brass

The most widely used industrial hydraulic quick coupling, compatible with ISO 7241-1 Series B. The Foster K3B is a brass 3/8" plug in the FHK Serie...

View full details
$ 344.00
$ 344.00 - $ 344.00
$ 344.00
$ 276.00
$ 276.00 - $ 276.00
$ 276.00
Save 20% Save %
Foster BLH1B, 1/8" ISO-B Hydraulic Coupler x 1/8" Female NPT, ISO-B Series, Ball Lock, Brass
Save 20% Save %
$ 217.00
$ 217.00 - $ 217.00
$ 217.00
$ 174.00
$ 174.00 - $ 174.00
$ 174.00

Foster K2SLV, 1/4" ISO-B Hydraulic Plug x 1/4" Female NPT, ISO-B Series, Less Valve, Plated Steel

The most widely used industrial hydraulic quick coupling, compatible with ISO 7241-1 Series B. The Foster K2SLV is a steel 1/4" plug in the FHK Ser...

View full details
$ 217.00
$ 217.00 - $ 217.00
$ 217.00
$ 174.00
$ 174.00 - $ 174.00
$ 174.00
Save 20% Save %
Foster BLH1B, 1/8" ISO-B Hydraulic Coupler x 1/8" Female NPT, ISO-B Series, Ball Lock, Brass
Save 20% Save %
$ 308.00
$ 308.00 - $ 308.00
$ 308.00
$ 246.00
$ 246.00 - $ 246.00
$ 246.00

Foster K2S6, 1/4" ISO-B Hydraulic Plug x 9/16"-18 SAE, ISO-B Series, Plated Steel

The most widely used industrial hydraulic quick coupling, compatible with ISO 7241-1 Series B. The Foster K2S6 is a steel 1/4" plug in the FHK Seri...

View full details
$ 308.00
$ 308.00 - $ 308.00
$ 308.00
$ 246.00
$ 246.00 - $ 246.00
$ 246.00
Save 20% Save %
Foster BLH1B, 1/8" ISO-B Hydraulic Coupler x 1/8" Female NPT, ISO-B Series, Ball Lock, Brass
Save 20% Save %
$ 282.00
$ 282.00 - $ 282.00
$ 282.00
$ 225.00
$ 225.00 - $ 225.00
$ 225.00

Foster K2S-104, 1/4" ISO-B Hydraulic Plug x 1/4" Female NPT, ISO-B Series, Silicone Seal, Plated Steel

The most widely used industrial hydraulic quick coupling, compatible with ISO 7241-1 Series B. The Foster K2S-104 is a steel 1/4" plug in the FHK S...

View full details
$ 282.00
$ 282.00 - $ 282.00
$ 282.00
$ 225.00
$ 225.00 - $ 225.00
$ 225.00
Save 20% Save %
Foster BLH1B, 1/8" ISO-B Hydraulic Coupler x 1/8" Female NPT, ISO-B Series, Ball Lock, Brass
Save 20% Save %
$ 274.00
$ 274.00 - $ 274.00
$ 274.00
$ 219.00
$ 219.00 - $ 219.00
$ 219.00

Foster K2S-103, 1/4" ISO-B Hydraulic Plug x 1/4" Female NPT, ISO-B Series, EPDM Seal, Plated Steel

The most widely used industrial hydraulic quick coupling, compatible with ISO 7241-1 Series B. The Foster K2S-103 is a steel 1/4" plug in the FHK S...

View full details
$ 274.00
$ 274.00 - $ 274.00
$ 274.00
$ 219.00
$ 219.00 - $ 219.00
$ 219.00
Save 20% Save %

Request a Quote

Bulk and dealer pricing. Tell us what you need and we’ll reply within one business day.