Secure pipes, cables & more to struts & channels using Discount Strut Accessories Blue High Temp ST304 Steel 4-1/2" Tube Size Cush-A-Nators®. Has servive temperatures of -65°F to 340°F (-53°C to 170°C). The thermoplastic vulcanized material cross-linked with high perfromance rubber & thermoplastic elastomers provides the highest operating termperature range in the indsutry.