Mannitol Salt Agar (MSA), USP, contact plate with Lok-Tight™ friction lid, optional locking feature

Added measure to assure sterility in your environmental monitoring program!

Hardy Diagnostics contact plates are recommended for use in the cultivation of microorganisms from environmental surfaces.
Mannitol Salt Agar (MSA), USP is recommended for use as a selective and differential medium for the isolation of pathogenic staphylococci. The medium complies with the harmonized European, U.S., and Japanese Pharmacopoeias for determining the microbial quality of non-sterile products.

3 Easy Steps:

1. Remove lid.
2. Gently press plate to surface without twisting or sliding.
3. Twist clockwise until frosted bands line up to lock lid into place.

Our Contact Plate features:
Friction lid
The friction lid design keeps lids in place before sampling.
Lok-Tight™ Locking Lid
An optional locking feature means lids stay secured post sampling and during transport to your lab.
Molded Grid
Each plate has a grid molded into the bottom of the plate to aid in the counting of microorganisms.
Certificate of Analysis
Available online for each lot.

Please contact us at for specific academic pricing.