Yes, steel tube couplers require regular maintenance to ensure their proper functioning and longevity. This includes regular inspection for any signs of wear, corrosion, or damage. They should be kept clean and free from debris, and lubrication may be necessary to prevent friction and ensure smooth operation. Additionally, couplers should be tightened properly and checked for any loose connections. Overall, following manufacturer guidelines and recommended maintenance practices is essential in ensuring the optimal performance and safety of steel tube couplers.