Check the listing for details. Lot 2 Aqualine Solid Brass Irrigation Bubblers Sprinklers Tree Watering, ADV-050. Condition: Open box. Listed at 9.99 USD. 3832SD3A.15 New Aqualine Solid Brass Irrigation Bubbler Valves, Sprinklers Tree & Shrub Watering, Part Number ADV-050. Each bid quantity is for a Lot of Two (2) Bubbler Valves. You may bid / buy any number of lots, up to the total quantity available above. These were purchased at a lost freight liquidation earlier this year, and they were brand new in the original factory boxes. We packaged them in heavy Ziplok bags for resale. Equipped with a polymer ball and stainless steel spring inside, which closes to prevent streaming when water pressure rises. A brass screen at the bottom of the bubbler keeps sand and other impurities in the irrigation water from clogging the valve. We do not have any flow information available for these, but the orifice diameter is just under 1/4 inch (.248'). Fits all standard 1/2" NPT female pipe fittings.