Green Leaf 3/8 in. MPT X 1/4 in. D FNPT Polypropylene Reducer Bushing

Green Leaf 3/8 in. MPT x 1/4 in. FNPT Polypropylene Reducer Bushing

The Green Leaf 3/8 in. MPT x 1/4 in. FNPT Polypropylene Reducer Bushing is a compact, dependable connector designed to gracefully transition from 3/8 inch male pipe threads to 1/4 inch female NPT fittings. Crafted from durable polypropylene, this reducer bushing blends ease of use with reliable performance for light-duty plumbing and irrigation setups.

Key specifications at a glance

• Brand: Green Leaf
• Material: Polypropylene
• End 1: 3/8 in MPT (Male Pipe Thread)
• End 2: 1/4 in FNPT (Female NPT)
• End 1 Type: MPT
• End 2 Type: FNPT
• Packaging: Bagged
• Number in Package: 1
• Average Lead Content: Low Lead
• IAPMO Certified: No
• NSF Listed: No
• Underground Rated: Unknown

What makes this reducer bushing stand out

• Simple, space-saving connection: Converts a 3/8 inch male thread to a 1/4 inch female thread in a single, straightforward piece, reducing the need for multiple fittings.
• Polypropylene durability: Lightweight and resistant to many chemicals, polypropylene handles everyday household and light commercial water applications without corrosion or rust.
• Low lead content: A safer choice for plumbing projects where lead exposure is a consideration, aligning with broader efforts to minimize lead in certain systems.
• No-wuss installation: Shrug off soldering or complex assembly—tighten onto compatible threads with standard NPT compatibility and appropriate sealing methods.

Ideal uses and practical scenarios

• Garden irrigation lines and drip systems where a 3/8" supply thread must connect to a 1/4" fixture or emitter.
• Residential water lines in light-duty configurations where a quick, reliable thread transition is needed without metallic fittings.
• Portable or temporary setups in small shops or hobbyist projects where plastic fittings offer easy handling and resistance to corrosion.

Installation tips for reliable performance

• Ensure threads are clean and free of debris before assembly.
• Use a thread sealant or PTFE tape rated for plastic/NPT connections to improve seal and prevent leaks. Apply sparingly to the male threads to avoid excess material entering the fitting.
• Hand-tighten, then give a firm final turn with a wrench. Avoid over-tightening to prevent thread damage or cracking the plastic body.
• Test the connection at a low pressure before putting the system fully under load to verify a secure seal.

Care, compatibility, and storage

• Store in a cool, dry place away from direct sunlight to preserve the polypropylene material.
• Avoid exposure to extreme temperatures and high-pressure systems beyond what light-duty polypropylene fittings are designed to handle.
• Not certified for NSF-listed potable water applications; verify local code requirements if used in potable systems.