Hudson Valve 1/2 inch Self-Contained Automatic Water Float Valve VSG | Pond Auto Fill, Tanks, Fountains & More | Water Tank Float Valve

Meet the Hudson Valve 1/2 inch Self-Contained Automatic Water Float Valve VSG — a compact, all-in-one solution that helps keep water levels in check with minimal fuss. It closes using water pressure, avoiding bulky levers and exposed moving parts, so you get a clean, reliable response when pressure shifts. The valve is designed for straightforward installation and dependable operation in a range of environments, from home water features to agricultural setups.

One of the standout advantages is the installation flexibility. You can mount it directly onto your existing plumbing, or pair it with a Hudson Mounting Bracket and a standard garden hose for a clean, elevated setup. With no external lever arm and no float ball, there are fewer components to worry about, which can simplify maintenance and help the unit stay unobtrusive in tight spaces.

Key benefits at a glance

• Easily installed on existing lines or with a mounting bracket and hose for a tidy, quick setup.
• Versatile applications include ponds, livestock tanks, fountains, troughs, swimming pools, and more.
• Heavy-duty ABS plastic body built to withstand outdoor conditions and resist rust.
• High flow capacity from 300 to 2,400 GPH, with a compact 2.5" diameter and 5.5" height.
• No lever arm, no external moving parts, and no float ball—reducing potential maintenance.
• Indestructible-feel durability, freeze-resistant performance, and anti-siphon design protect your systems in the field.

Real-life uses and setup ideas

Imagine a garden pond auto-filling during periods of evaporation or a livestock trough staying topped off on warm days. The Hudson Valve is designed to respond to water pressure, giving you a simple, discreet way to maintain appropriate levels in tight spaces.

• Ponds and fountains: steady water levels without constant monitoring.
• Aquariums and evaporative coolers: reliable top-offs that support healthy environments.
• Pools, irrigation lines, and outdoor tanks: a compact, space-saving solution that fits behind equipment or under eaves.

Technical specs and design notes

Specs include a 1/2" FNPT connection and an ABS plastic body designed to resist wear. It works with flow rates from 300 to 2,400 GPH, and its compact form (2.5 inches across by 5.5 inches tall) helps it tuck into tight spots. The design closes with water pressure, eliminating bulky levers and balls while staying robust against harsh conditions.

While the features described reflect the product's capabilities, actual results depend on your setup and conditions. The Hudson Valve offers a practical, low-maintenance option for hands-off water-level management.