3/4" Brass Ball Valve Threaded - Lead Free (943-LF)

The 3/4" Lead Free Brass Ball Valve (943-LF) is a full port, quarter-turn shut-off valve built for residential, commercial, and light industrial piping systems where code-compliant lead-free construction, long service life, and reliable on/off performance are all required at the 3/4" pipe size. The lead-free brass body satisfies NSF 372 and Safe Drinking Water Act compliance requirements, making this valve fully approved for potable water service and the correct choice wherever local plumbing codes mandate lead-free materials — which today means virtually every potable water installation in the United States.

The 3/4" size is the single most common pipe size in residential plumbing and one of the most heavily used sizes across commercial mechanical, irrigation, and light industrial systems. It appears on main water service lines entering homes and small commercial buildings, water heater supply connections, washing machine and dishwasher feeds, irrigation main shut-offs, boiler make-up water lines, hose bib supply branches, and countless other branch and service line applications where a reliable shut-off valve is needed and threaded installation is standard. Female NPT connections on both ends make installation clean and straightforward — thread onto standard 3/4" NPT pipe or fittings with pipe tape or thread sealant for a fast, permanent, leak-free connection with no special tools, solvents, or press equipment required.

The full port ball design keeps the flow path completely open to the pipe's full interior bore in the open position — no restriction, no turbulence, and no pressure drop across the valve. At the 3/4" size, this full port performance is particularly important on water service entries and irrigation main lines where even modest flow restriction can reduce downstream pressure to fixtures and zones. The chrome-plated brass ball rotates against PTFE seats for a consistent bubble-tight shut-off with low operating torque that remains reliable through years of service and repeated cycling — even in water with mineral content, mild sediment, or chlorine exposure that would wear lesser seat materials over time.

The steel lever handle delivers fast, unambiguous quarter-turn actuation, and its position always gives an immediate visual read on valve status — parallel to the pipe is open, perpendicular is closed. Rated at 600 WOG (Water, Oil, Gas), the 943-LF handles the pressure demands of any residential or commercial application with a generous safety margin, and the blowout-proof stem provides an additional layer of safety under sustained line pressure.

Key Features:

• Lead-free brass body — NSF 372 compliant for potable water
• Full port design for unrestricted flow and minimal pressure drop
• Female NPT x Female NPT threaded connections
• Chrome-plated brass ball for smooth, long-lasting operation
• PTFE seats and packing for leak-free, low-torque sealing
• 600 WOG cold working pressure rating
• Quarter-turn steel lever handle with visual open/close indicator
• Blowout-proof stem for added safety under pressure
• Meets Safe Drinking Water Act lead-free requirements

Specifications:

Industries & Applications:

• Residential Plumbing — The dominant use case for this size; installed as the primary shut-off on water service entries, water heater supply lines, washing machine feeds, irrigation main connections, and hose bib branch supplies in single-family and multifamily residential construction; NSF 372 lead-free compliance is required by code for all potable water applications
• Commercial & Light Industrial Plumbing — Used on branch lines, equipment supply connections, and utility shut-offs throughout commercial buildings where 3/4" is the standard terminal service size; lead-free construction keeps installations compliant with commercial plumbing code requirements across all jurisdictions
• Potable Water Systems — NSF 61 & 372 certified for drinking water contact; appropriate for water distribution in schools, multifamily housing, healthcare facilities, restaurants, and any commercial building where listed lead-free components are required at every isolation point
• Irrigation & Landscape — One of the most common valve sizes for residential and light commercial irrigation main shut-offs, backflow preventer isolation, and zone manifold supply connections; the full port design preserves irrigation system pressure from the supply line through to the zone valves
• HVAC & Mechanical Systems — Used on boiler make-up water connections, fan coil unit supplies, chilled water branch isolations, and equipment service connections in light commercial and residential mechanical systems where 3/4" is the standard branch size
• Pool & Spa Equipment Pads — Brass construction withstands the humid, chemically active environment around pool pumps, filters, heaters, and salt chlorine generators; used on equipment supply connections, bypass valves, and chemical system feed points at the 3/4" service size
• Gas & Fuel Service — 600 WOG rating covers natural gas and propane applications where lead-free brass ball valves are approved by local codes for gas service; always verify applicable local gas code requirements before installation on fuel gas lines