THIS PINLOCK IS STANDARD OF HANNAY 1500 AND 1800 SERIES HAND CRANK REELS AND WILL BOLT ON TO HT ELECTRIC REELS ALSO.  IT IS A EASY WAY TO SECURE YOUR HOSE WHEN IN TRANSPORT AND ALSO HELPS CONTROL THE SURGE OF THE REEL WHEN ROOTFEEDING OR OTHER USES WITH CONSTANT ON AND OFF.