Eff eff121-09-lf Straight Stop Mini-ball Valve Lead-free 1/2 Inch Pex X 3/8 Inch Od Compression

Product Description

The EFF eff121-09-lf is a lead-free straight stop mini-ball valve from Eastern Foundry and Fitting, built for residential and commercial plumbing systems where reliable shutoff is essential. This valve belongs to the EFF121 Series and connects 1/2 inch PEX tubing to 3/8 inch OD compression fittings, making it a common choice for under-sink supply lines, toilet connections, and fixture shutoffs. It operates at pressures up to 400 psi and handles temperatures up to 250 degrees Fahrenheit, giving it a wide range of use in hot and cold water supply applications. The valve measures 1.929 inches from inlet to outlet and stands 1.496 inches in height, keeping it compact for tight spaces behind walls or under cabinets. The body is constructed from brass that meets ASTM B124 C46400 standards, while the overall product complies with ASTM 1807 material requirements. The brass ball and PTFE seat provide a smooth, consistent shutoff with every quarter turn. EPDM seals and softgoods deliver lasting resistance to water and common plumbing chemicals. The stem uses a double o-ring design that reduces the chance of leaks around the packing area, a common failure point on low-quality valves. The zinc alloy handle gives a firm grip for hand operation without tools. The alloy used in the body is dezincification and stress corrosion-resistant, which extends service life in areas with aggressive water chemistry. Plumbers, pipefitters, and remodeling contractors rely on lead-free valves like the eff121-09-lf to meet modern plumbing codes for potable water systems. This valve is suitable for use in new construction, renovation, and repair work wherever a compact, durable quarter-turn shutoff is needed.

• Lead-free brass construction meets ASTM 1807 and ASTM B124 C46400 standards for potable water applications
• 1/4-turn operation with PTFE seat and brass ball for smooth, reliable shutoff with minimal effort
• Double o-ring seal stem and EPDM softgoods reduce leak risk and extend service life

Product Highlights

The EFF eff121-09-lf straight stop mini-ball valve delivers a compact, code-compliant shutoff solution for PEX to OD compression connections. Its dezincification-resistant brass body and double o-ring stem make it a dependable choice for potable water supply lines.

Product Information

Standard Information

• Brand: EFF
• Manufacturer Part Number: eff121-09-lf

Technical Specifications

• Series: EFF121
• Connection Type: PEX x OD Compression
• Inlet Size: 1/2 inch
• Outlet Size: 3/8 inch
• Maximum Pressure: 400 psi
• Maximum Temperature: 250 degrees Fahrenheit
• Inlet to Outlet Length: 1.929 inches
• Height: 1.496 inches
• Body Material: Brass
• Ball Material: Brass
• Stem Material: Brass
• Seat Material: PTFE
• Seal Material: EPDM
• Handle Material: Zinc Alloy
• Operation: 1/4-Turn
• Stem Design: Double O-Ring Seal
• Lead-Free: Yes
• Material Standard: ASTM 1807, ASTM B124 C46400
• Corrosion Resistance: Dezincification and Stress Corrosion-Resistant