Check the listing for details. 1/2" barbed bulkhead fitting w/ Filter/Strainer for Hydropnics system/aquarium. Condition: New. Listed at 7.00 USD. 1/2" barbed bulkhead fitting for Hydroponics system/Aquarium/etc. with Filter/Strainer. These fittings have a higher throughput than the Botanicare 1/2" bulkhead fittings. Our bulkheads have an output radius of 1.1cm to Botanicare's .95cm. They also have a much smaller form factor. Botanicare's require a 1.25" (1 1/4") hole to be drilled. Ours only require a 0.625" hole (5/8"). We've removed the nut and provided a discount for buying these items as a package. Each fitting includes 2 rubber grommets to seal the bulkhead and prevent leaking. CUSTOM thread lengths and fittings available. (Need a long nozzle or thread? Contact us) Discounts on larger orders available. *NOTE* This set does not include the nut. The strainer/filter will create the same seal the nut does (in our listing without the filter). Condition is New. 3D Printed with PETG. Shipped with USPS First Class Package.