Check the listing for details. (25 Pack) New Botanicare Bulkhead Fitting 1" FTBK1 Ebb&Flow Botanicare. Color: Black, Condition: New. Listed at 38.00 USD. The Botanicare Bulkhead Fitting is a 1" fitting designed for use in ebb and flow hydroponic systems. This pack includes 25 bulkhead fittings, each with a diameter of 2 inches and a length and width of 2 inches. The black color of the fittings makes them easy to install and helps them blend in with the overall look of the hydroponic system. Botanicare is a trusted brand in the hydroponics industry, ensuring quality and reliability in this product.