Laundry Garden Hose adapter for Reverse Osmosis RO garden/hose adapter 3/4" connection for garden/laundry hose outlet Output: 1/4" Reverse Osmosis tubing Allow to use garden/laundry outlet for feeding Reverse Osmosis or other water filters Please do not USE any teflon tape, otherwise leak will guaranteed. This happens with many customers who make this mistake. Rubber ring inside garden hose adapter prevents any leaks.