I saw the pic when you first posted and looked in lowes and home depot and they did not have it here or it was out of stock and they did not fill the spoy it should have been in and that seems to be normal for here .I went to the electrical supply house but by the time I got there they were closed .Still can't understand why they close at 3 o'clock ,makes no sense to me and they are only open 4 days a week .Same thing at the plumbing supply store closed and they wonder why they loose business .I should have tried the pool supply stores but did not think of them until I saw your hose .Went through the box of pool stuff but nothing like it in there either .gosh raining again .They sell rubber washers in all sizes also
You can order it online from the Lowe's site andthey will deliver to the store for free.