The RAV SRT046L / SRT175A1 Brake Tester Covers are designed to protect roller brake testers during non-testing periods. These drive-through covers are suitable for Class 4 (SRT046L) and Class 7 (SRT175A1) roller brake testers. They help prevent debris accumulation and potential damage, ensuring the longevity and accuracy of the equipment. The covers are easy to install and remove, providing a practical solution for maintaining the integrity of the brake testing system.