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EON is a leader in the environmental sampling industry, offering a comprehensive selection of passive water samplers, passive diffusion bag (PDB) samplers, and a variety of all types of top-performing water sampling and pumping tools. Thanks to our product development success and the knowledge and expertise of our team, we are the number one supplier of passive groundwater sampling supplies!

Browse our entire array of passive water sampling products below and see how our innovative samplers, such as the Equilibrator™ Passive Diffusion Sampler, the HydraSleeve™ and the SuperSleeve No-Purge grab samplers, provide you with cost-saving sampling solutions. We even manufacture low-cost suspension tethers customized to precisely position the samplers in each of your wells.

Have questions about any of the passive water samplers you see below? Call us or consult with one of our experts online today!

EON Dual Membrane Passive Diffusion Samplers (DMPDB™) DMPDB, dual membrane, passive diffusion, water sampler
Availability: In Stock

DMPDBs are passive diffusion samplers for groundwater that provide representative discrete interval samples of nearly any dissolved compound in groundwater without purging or pumping. Why Use the DMPDB™? Sample for a wide range of analytes (not just VOCs).Reduce sampling cost 50%-70% by eliminating field time spent purging and samplingEliminate the cost of purge-water and investigation derived waste (IDW) disposal.Easy and quick installation and recovery helps in high-traffic areas and for...

Passive Water Samplers and Sampling Equipment | EON Pro | EQUILIBRATOR PDS or PDB
Availability: In Stock

The EQUILIBRATOR™ Passive Diffusion Samples 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 VOCsReduce 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...

1.3-inch diameter pre-filled PDB
Availability: In Stock

Small Diameter Passive Diffusion Bag Samplers (PDBs) are used to obtain representative, discrete interval samples of Volatile Organic Compounds in groundwater monitoring wells less than 2-inches diameter in place of purging and low-flow sampling methods. EON's Small Diameter PDBs are supplied pre-filled with de-ionized water, ready for installation and are designed to be extremely easy to install and rugged to survive unexpected field events. Sample for VOCs in 1-inch diameter and larger...

HydraSleeve "No Purge" Grab Sampler
Availability: In Stock

The HydraSleeve™ is used in place of purging and low-flow sampling methods in groundwater monitoring wells to obtain representative, real time, discrete interval sample of ALL compounds under natural groundwater flow conditions. The HydraSleeve is effective for sampling slow recharge wells, for monitoring interfaces, and for concentration profiling. Why Use the HydraSleeve™? Sample for ALL CompoundsReduce Sampling Cost 50%-70%Eliminating Purging and Purge-Water Disposal.Highly Portable, No...

HydraSleeve "SpeedBag™" Grab Sampler
Availability: In Stock

Why Use the SpeedBag™? Reduce Sampling Cost 50%-70% by Eliminating Field Time Spent Purging and the Cost of Purge-Water Disposal.Speed Up Sampling Even More by Eliminating Waiting for Well StabilizationIt's Easy! No Special Tools or EquipmentObtain Depth-Specific Concentration.Sample for ALL Compounds.Sample Slow Recharge Wells The HydraSleeve SpeedBag™, obtains a sample volume of 900 ml, based on its diameter and length. Be sure to check with your lab and ask the minimum volume requirements...

SuperSleeve
Availability: In Stock

The SuperSleeve™ is used in place of purging and low-flow sampling methods in groundwater monitoring wells to obtain representative, real time, discrete interval sample of ALL compounds under natural groundwater flow conditions. The SuperSleeve is effective for sampling slow recharge wells, for monitoring interfaces, and for concentration profiling. Why Use the SuperSleeve™? Sample for ALL CompoundsReduce Sampling Cost 50%-70%Eliminating Purging and Purge-Water Disposal.Highly Portable, No...

Sediment Diffusion Sampler
Availability: In Stock

The Equilibrator Sediment Diffusion Samplers are used to obtain representative concentrations of VOCs in saturated sediments or in stream beds, ponds, etc. This is an easy and reliable method for monitoring recharge and discharge areas including embankments, stream beds, pond sludge where a monitoring well is not installed. The Equilibrator can be buried directly in sediments or used with our protective canister screens in sediments or streams where physical conditions or debris could...

Passive Vapor Diffusion Sampler
Availability: In Stock

Vapor Diffusion Samplers are an inexpensive way to collect VOC concentrations from soil or boreholes. A 40 ml glass vial is enclosed in a polyethylene membrane. VOC respond to the concentration gradient when placed in a VOC environment causing the VOC molecules to enter the vial through the membrane until th concntration inside the vial equals the concentration outside.