Yes. We do indeed sell replacement lids. See Cuvette Lids (100 per pack) (CUV-LID)

These lids can be used with the cuvettes for the Colorimeter (COL-BTA), Go Direct^® Colorimeter (GDX-COL), , , Go Direct^® SpectroVis^® Plus Spectrophotometer (GDX-SVISPL), Vernier Spectrometer (V-SPEC), Go Direct^® Visible Spectrophotometer (GDX-SPEC-VIS), Ocean Optics spectrometers, and Go Direct^® Turbidity (GDX-TRB). The lids are made of polyethylene.

The lids are 12 mm square on top and gradually taper down to 9 mm square on the bottom side that fits down into the cuvette. The lids will fit most standard 1 cm pathlength spectrometer cuvettes having a square opening. Thew will not fit into cuvettes having round openings.

Additional Information

• What is the difference between the types of cuvettes you sell for colorimeters and spectrophotometers?
• Plastic Cuvettes (Visible Range) (CUV)
• Plastic Cuvettes (4 sided - Clear) (CUV-4S)
• Plastic Cuvettes (UV-VIS) (CUV-UV)