The reason you're not getting replies is kangertech is out of stock on them. I would go to your local hardware store and get something that fits, fill your tank with water and make sure its not leaking. Once yiu cinfirm that you canbuse it UNTIL the real o rings are back in stock. I think a pack of 100 is 10 bucks
sent from my phone via tapatalk 2 because I can't stop reading and posting on ECF