Our Location                                                                           Office Phone

3230 Industrial Way, SW | Suite B | Snellville, GA 30039       (800) 474-2490


    The EQUILIBRATOR™ Passive Diffusion Samplers obtain representative, discrete interval samples of Volatile Organic Compounds in groundwater without purging or pumping. Effective for any site where VOCs are the main contaminant of concern.


    Why Use the Equilibrator?

    • Sample for VOCs
    • Reduce sampling cost 50%-70% by eliminating field time spend purging and the cost of purge-water disposal.
    • Easy and quick installation and recovery helps in high-traffic areas and for allows for Social Distancing.
    • No expensive, complicated, or bulky equipment to purchase. maintain or mobilize
    • Obtain depth-specific concentration profiles.
    • Reduce sampling error and improve repeatability.
    • A Greener sampling method; less disposable material, no batteries, gasoline or waste.



      The EQUILIBRATOR™ Passive Diffusion Sampler (PDS or PDB) is the world-wide number one passive groundwater sampler. EON's PDBs can be used for surface water, too!

        Item # Description/Size Availability Qty Break Price Quantity
        GSD200-PF1
        Equilibrator Passive Diffusion Sampler (PDB), Prefilled with ASTM Type 1 Deionized Water; 18in x 1.75in 350 ml. Discharge Straws (GSD290) are included but packaged separately.
        In Stock 1 $25.70
        GSD210-PF1
        Equilibrator Passive Diffusion Sampler (PDB); 24in x 1.75in, Prefilled with ASTM Type 1 Deionized Water; 500 ml Discharge Straws (GSD290) are included but packaged separately
        In Stock 1 $29.70
        GSD220_PF1
        Equilibrator Passive Diffusion Sampler (PDB); 36in x 1.75in, Prefilled with ASTM Type 1 Deionized Water; 750 ml Discharge Straws (GSD290) are included but packaged separately
        In Stock 1 $50.25
        GSD200
        Equilibrator Passive Diffusion Sampler (PDB); 18in x 1.75in 350 ml Discharge Straws (GSD290) are included but packaged separately
        In Stock 1 $17.80
        GSD190
        Equilibrator Passive Diffusion Sampler (PDB); 12in x 1.75in 150 ml Discharge Straws (GSD290) are included but packaged separately
        In Stock 1 $17.80
        GSD210
        Equilibrator Passive Diffusion Sampler (PDB); 24in x 1.75in 500 ml Discharge Straws (GSD290) are included but packaged separately
        In Stock 1 $19.50
        GSD307
        PDB Fill Kit for Equilibrator 1.75in Diffusion Sampler
        In Stock 1 $3.70
        GSS10-100
        Service: PDB Blank, prefilled w/ 100 ml of ASTM I deionized water
        In Stock 1 $4.00
        GSD325
        PDB Storage Pouch. Resists diffusion of VOCs from the air into the pouch. Used to help prevent VOCs in surrounding air from entering the PDBs in the pouch during transit and storage.
        In Stock 1 $5.35