Sierra International 18-1656 3-Way, 3/8" FNPT Shut Off Valve with Detent 3-Way, 3/8" FNPT Shut Off Valve with Detent 3-Way FNPT Valve With Detent: 3/8" or 9.5mm Sierra Part Number 18-1656 Item: 3-Way, 3/8" FNPT Shut Off Valve with Detent All Sierra parts qualify for and are covered under Sierra's Industry Leading Customer Satisfaction Warranty Before Ordering, Please Verify this is the Correct Part for your Application. For Assistance, Please Call Sierra's Tech Support at 1-877-663-8396