Comparison : Item # 10 310 2402, CEJN eSafe™ Series 310, Safety Coupling
Item # 10 310 2452, CEJN eSafe™ Series 310, Safety Coupling
Item # 10 310 5402, CEJN eSafe™ Series 310, Safety Coupling
Item # 10 310 5452, CEJN eSafe™ Series 310, Safety Coupling