Replacement rain gauge glass tube. Select from the following:

Hummingbird Rain Gauge Glass Tube - approx. 2.25" x 2.25" x 8.25" ***Please note: This is for the large Hummingbird Rain Gauge 

Paisley & Hummingbird Rain Gauge Pick Glass Tube - approx. 1.25" x 1.25" x 8.25"