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The AQUALINE TBH-300 is a 3-inch female iron pipe thread (FIPT) bulkhead fitting constructed from polypropylene. Bulkhead fittings are used to create a leak-tight pass-through in a tank wall, vessel, or panel, allowing fluid to transfer from one side to the other without seepage. This fitting is threaded on both the interior and exterior connections, accepting standard FIPT pipe connections. Polypropylene construction provides resistance to a broad range of chemicals and is well suited for water and aqueous solutions encountered in pool, spa, irrigation, and water treatment applications. Plumbers and pool service technicians are the primary installers.
This fitting is commonly used in above-ground and in-ground pool systems, chemical storage tanks, sump applications, and water treatment vessels where a secure, sealed wall penetration is required. The 3-inch FIPT size accommodates high-flow lines typical of main drains, circulation inlets, or chemical feed systems. It is suitable for both residential and light commercial installations where polypropylene's chemical resistance and moderate pressure handling are appropriate for the service conditions.
Designed as an OEM-style replacement or new-installation bulkhead fitting for tanks, vessels, and panels accepting 3-inch FIPT connections in pool, spa, and water treatment systems.
Installation is typically performed by a licensed plumber or qualified pool service technician. Shut off all flow and depressurize the system before cutting or modifying any tank wall or vessel. Ensure the tank wall thickness and material are compatible with the bulkhead fitting's sealing surfaces and gasket before installation. Follow local plumbing codes and manufacturer torque guidelines for threaded fittings to avoid cracking the polypropylene body.
We pulled together the parts most installs need for this unit, plus a few add-ons worth a look. Check what you need — nothing here blocks checkout.
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