Parts Oxygen Stone - Stainless Previous40A Solid State Relay Next2" Tri-Clover Complete Element Assy (each) Oxygen Stone - Stainless Oxygen Stone - Stainless $33.00 Stainless steel oxygen stone1/2” NPT Male Thread x 1/4” BarbStone is 1” long (beyond the threaded portion) Quantity: Add To Cart Facebook0 Twitter Pinterest0 You Might Also Like High Temp O-Ring (fits sight glass) $3.00 Kettle Hole Plug $10.00 15' Low Pressure Gas Supply Hose with Quick Disconnect $110.00 Valve Handle Sleeve $2.00 CIP Spray Ball $50.00