1/4" John Guest Straight Fitting Rating: Select ratingGive it 1/5Give it 2/5Give it 3/5Give it 4/5Give it 5/5 Average: 5 (2 votes) (0 reviews) This fitting is installed on one side of the DI stage's white cap, feeding water straight into the housing. $7.00 SKU: 22029 Feed water straight into the housing