The Museum has a small number of these used 3/8 low pressure multi port adapters or "three way splitters" available. They are used but work just fine. Compare the price to new at $30.00. Get yours while supplies last. These are 3/8 ports, some marked DACOR. Don't let Omar on ebay sell you one of these for 15 dollars, buy at the museum and save.
Price $10.00 each plus $4.00 shipping