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Silonite Classical Canisters


  • Silonite® Surface Coating
  • Welded Valve Guard
  • Extended Range Canister Sampling

Silonite Canisters with the NEW Toxic Organics Valve (TOV-2)

Entech’s Silonite® canisters feature a large volume capacity for detection of volatile chemicals down to the low part per trillion range. An inert and durable internal Silonite® coating provides a high-quality, long-term sample storage solution. Losses in the valve are avoided by using our new Toxic Organics Valve™ (TOV-2™) which includes Entech’s new “sure-seal” technology and low carryover, replaceable nickel ferrules. An integrated valve guard is securely welded to the canister for superior light-weight valve protection without any stresses to the valve stem associated with heavy “strapped-type” valve guards. These canisters are certified to meet or exceed the technical specifications required for EPA methods TO-14a and TO-15. High quality performance is verified for EVERY canister with our demanding chemical inertness tests.

Silonite® Surface Coating

We believe that each and every canister should be as inert and corrosion resistant as possible. That is why all of our canisters feature Silonite®

Welded Valve Guard

Unlike “strap” designs, our TOV™ guard provides superior valve protection and far less  added weight.

Extended Range Canister Sampling

Our Silonite® Canisters are more inert than SUMMA® or electropolished canisters, allowing recovery of a greater range of chemicals – including reduced sulfur compounds.

Silonite Classical Canisters Applications

Field Canister Testing

We are the only manufacturer to offer the unsurpassed range, quality, and reliability of McDaniel Controls, Inc. gauges with ¼” compression fitting. The compression fitting connects easily to a dual stem canister, or our new dual port TOV-2™ without any need for Teflon® tape for improved canister cleanliness.


You can also choose to verify sample integrity in the field with the precision and reliability of the DDS™ Gauge. The digital gauge shown below features absolute pressure readings that are never affected by altitude!

We also offer high quality McDaniel® Gauge assemblies for easy field testing of standard TOV-2™ equipped canisters that do not have the included gauge option or a dual stem with an attached gauge.