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 Sold Out Female Quick Disconnect Fitting x 1/2" Barb Stainless $15.00 10" Pneumatic Wheel $16.00 Cork Float $2.00 Stainless Steel Gas Flex Connector from $18.00 3/4" Female / 1.5" TC Fitting $17.00