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The WILLIAMS COMFORT PRODUCTS 8FB25F38M is a pipe bushing designed to adapt a 1/4 inch female connection to a 3/8 inch male connection. This fitting provides a reliable transition between two different thread sizes within gas or fluid distribution lines. It is a common component in heating systems, gas appliances, and plumbing assemblies where mismatched thread sizes require a direct, low-profile adapter. Licensed plumbers, HVAC technicians, and gas fitters typically source and install this type of bushing during new installations and service work.
This bushing is suited for use in residential and light commercial applications where a 1/4 inch female port must accept a 3/8 inch male fitting. Typical scenarios include gas valve piping connections, manifold assemblies, and supply line transitions on furnaces, boilers, and water heaters. The compact form factor allows installation in tight spaces where a full union or coupling would not fit.
Designed as an OEM-style replacement bushing for gas heating appliances and plumbing systems requiring a 1/4 inch female to 3/8 inch male thread adapter.
Installation should be performed by a licensed plumber or qualified HVAC technician in accordance with applicable local codes and the IFGC. Shut off the gas supply and depressurize the line before removing or installing any fitting. Apply thread sealant rated for gas service to male threads before assembly, and verify for leaks with an approved leak-detection solution after pressurizing the line. Do not overtighten, as this can crack or deform the fitting seat.
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