1 L polypropylene bottle

McMaster

2801T55

$5.43

PVC Mini Adjustable Float Valve

United States Plastic Corporation®

23135

$7.57

Polypropylene Float

McMaster

9775K35

$3.01

1/4" Through-Wall Coupling

McMaster

51055K3

$3.02

Silicone O-ring, As568a Dash Number 208

McMaster

9396K81

$0.15

Total

3/8" Through-Wall Coupling

McMaster

51055K3

$3.95

Silicone O-Ring AS568A Dash Number 211

McMaster

9396K32

$0.15

3/8" Acetal Shut-Off Valve

United States Plastic Corporation®

58357

$12.50