Eldon James C3-2BN Automotive Black Nylon Reduction Coupler, 3/16" Hose Barb to 1/8" Hose Barb (Pack of 10)

Eldon James C4-2BN Automotive Black Nylon Reduction Coupler, 1/4" Hose Barb to 1/8" Hose Barb (Pack of 10)

Eldon James C4-3GFBN Automotive Glass Filled Black Nylon Reduction Coupler, 1/4" Hose Barb to 3/16" Hose Barb (Pack of 10)

Dwyer Portable Static Pr Tip, A-303, For 3/16" Plastic/Rubber Tubing, 4" (101 mm) Insertion Depth

Eldon James C2-1-200BN Automotive Black Nylon Reduction Coupler, 1/8" Hose Barb to 1/16" Hose Barb (Pack of 10)

Eldon James C4-3WN Industrial White Nylon Reduction Coupler, 1/4" Hose Barb to 3/16" Hose Barb (Pack of 10)

Manometer, RISEPRO Digital Air Pressure Meter and Differential Pressure Gauge HVAC Gas Pressure Tester

Gikfun 12V DC Dosing Pump Peristaltic Dosing Head with Connector for Arduino Aquarium Lab Analytic DIY AE1207

Eldon James T0-2-200BN Nylon Equal Barb Tee, 1/8" Hose Barb, Black (Pack of 10)

Eldon James C6-4BN Automotive Black Nylon Reduction Coupler, 3/8" Hose Barb to 1/4" Hose Barb (Pack of 10)

Hti-Xintai Digital Manometer, Dual Port Air Pressure Meter Pressure Gauge HVAC Gas Tester, Large LCD Display with Backlight, Basic