Spectronic Corp.’s new Spectroline TES-31 tamper-evident straps, eliminate refrigerant cross-contamination in recovery equipment, air conditioning and refrigeration systems, the maker says. The straps ensure the homeowner of the system’s purity while also preventing unqualified repairs and costly return visits. They come in a storage bag complete with 10 tamperproof tie straps with serial numbers and matching labels.

The company says no special tools are needed to apply the straps. While installing, simply position the strap over the service port, tighten the strap and trim the excess. To complete the installation, apply the label provided and record the unique serial number found on the strap.