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

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

Eldon James C4-1-200BN Automotive Black Nylon Reduction Coupler, 1/4" Hose Barb to 1/16" Hose Barb (Pack of 10)

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

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

Eldon James C2-1.5-200NN Natural Nylon Reduction Coupler, 1/8" Hose Barb to 3/32" Hose Barb (Pack of 10)

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

ATP Surethane Polyurethane Plastic Tubing, Clear, 1/16" ID x 1/8" OD, 100 feet Length

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