Camco Boat Dual Water Feed Motor Flusher Flushes Contaminates Out of Your Boat Engine Dual Input Design Connects to Standard Water Hoses Great for Winterization (50141) bee05 Retevis RT 5R RT 5RV etc Baofeng UV 5R B0D92R6Z4D Retevis RT 5R RT 5RV etc Baofeng UV 5R BF 888S Retevis H 777 RT21 RT22 RT27 H 777S RT 5R RT 5RV etc Retevis RT27 Retevis H 777S walkie talkies Compatible with Retevis H 777 RT21 RT22 RT 5R RT17 RT18 RT19 RT27 Baofeng UV 5R series BF F8HP BF 888S Arcshell AR 5 Kenwood two way radio and more Package includes 1 piece 10 pcs 5 pcs 1 piece 1 piece 5 pcs ROCKBROS adheres to the concept of providing affordable products for every consumer who loves cycling and healthy life this flusher connects easily to any standard garden hose and is compatible with most outboard motors and sterndrive engines making it a versatile tool for boat owners