Material: solid brass plus stainless steel spring Color: gold Model: 1/2' NPT Length: approx. 45 mm Key benefits Durable construction for long life: solid brass body combined with a stainless steel spring resists wear and corrosion. Standard compatibility: 1/2' NPT model ensures easy mating with common piping and fittings. Compact form factor: length of about 45 mm enables installation in tight spaces. Attractive finish: gold color provides a visually appealing appearance for visible installations. Reliable operation: stainless steel spring adds durability and consistent performance over time. Use scenarios Residential plumbing projects that require a 1/2' NPT threaded connection with a robust brass body and spring. Installation or retrofit in HVAC or equipment setups that use 1/2' NPT fittings in constrained spaces. Maintenance or replacement in commercial equipment where a corrosion resistant brass component with a stainless steel spring is advantageous.