Flat bottom container with clear polypropylene screwcap.
Cap & base have sealing flanges to create an airtight seal.
Plastics are UV stabilised so that they last longer under grow room lights.
Flat bottom clear containers with screw cap.
Lids have a gasket of EPDM rubber to provide an airtightseal. EPDM rubber withstands repeated auto claving and will not releaseany toxic compounds.