Spare O-ring, black, for POD sampler (support body), pk 10 

Focusing trap, Photochemical Assessment Monitoring Stations (PAMS), for UNITY-xr, TD100-xr, Centri

Tedlar PVF Gas Sampling Bag with PP valve, 10L, 3/16'' OD (4.76mm)

Sample disc, 1.0mm thickness, PTFE,pk 6