Aqualine TBH-400 Bulkhead Fitting 4 Inch Fipt

Product Description

The AQUALINE TBH-400 is a 4-inch female iron pipe thread (FIPT) bulkhead fitting constructed from polypropylene. Bulkhead fittings create a leak-tight pass-through connection at the wall of a tank, sump, or reservoir. The polypropylene body resists corrosion, most common pool chemicals, and moderate temperatures, making it a reliable choice for fluid transfer applications. This fitting is installed by plumbers, pool service technicians, and irrigation professionals wherever a tank wall penetration must be sealed and threaded for pipe connection on one or both sides.

The TBH-400 is suited for residential and light commercial applications including pool and spa equipment tanks, chemical storage vessels, sumps, and water treatment reservoirs. The 4-inch FIPT connection accepts standard 4-inch male-threaded pipe or fittings. Its polypropylene construction makes it appropriate for use with chlorinated water, mild acids, and other fluids compatible with polypropylene. It is not rated for high-pressure steam or applications exceeding the material temperature limits.

Key Features

• 4-inch FIPT connection for standard threaded pipe installation
• Polypropylene body resists corrosion and common pool and chemical environments
• Bulkhead design provides a sealed tank wall pass-through
• Order increment of 1 — sold individually

Compatibility

Designed as an OEM-style replacement or new-installation bulkhead fitting for 4-inch FIPT threaded connections in tank walls, sumps, and reservoirs where polypropylene construction is appropriate.

Installation Notes

Installation is typically performed by a licensed plumber or pool service technician. Drain and depressurize the tank or vessel completely before cutting or modifying the tank wall. Use a properly sized hole saw for the bulkhead body diameter and ensure the mating surfaces are clean and flat for a leak-free gasket seal. Apply thread sealant or PTFE tape to all threaded connections per standard plumbing practice and applicable IPC guidelines.