Automatic Water Level Float Valve — Stainless Steel Mini Fill Switch for Tanks & Troughs — Self-Regulating Water Feed Control | Lonoma
Keep Your Tanks Filled—Without the Guesswork
This automatic float valve brings hands-off precision to any water reservoir. Machined from food-grade 304 stainless steel and paired with a corrosion-resistant 201 stainless float ball, it opens when liquid levels drop and seals tight the instant your container reaches capacity. No timers, no sensors, no electricity—just dependable mechanical control that works every time. Ideal for livestock waterers, rainwater catchment barrels, aquaponics systems, hydroponics reservoirs, solar water heaters, irrigation tanks, and any setup where consistent water levels matter. Built to handle high municipal pressures and withstand freezing winters or sun-scorched summers, this compact mini valve fits tight spaces and delivers professional-grade reliability for years.
Why You Need This
- No More Manual Topping-Up: The float senses water depth and controls the inlet automatically, so you never waste time checking or refilling.
- Handles High Pressure: Rated for 10 to 150 PSI, it connects directly to city mains or pumped systems without throttling or failure.
- Extreme-Temperature Durability: Operates from 32 °F to 212 °F—perfect for freezing climates, solar collectors, and heated livestock drinkers.
- Rust-Proof Stainless Construction: Both body and float resist corrosion, scale buildup, and UV degradation; outperforms flimsy plastic valves that crack or warp.
- Quick, Tool-Free Installation: Threaded design screws securely into your tank or trough fitting in seconds and creates an instant, leak-free seal.
- Compact Size for Tight Spots: Measures approximately 2 to 4 inches depending on thread configuration, fitting confined spaces where standard valves won't.
Built to Last Outdoors and In
Plastic float valves split under freeze-thaw cycles and degrade in sunlight; stainless steel resists both. The polished internal seal shrugs off sediment and mineral deposits, ensuring clean shut-off cycle after cycle. Whether you're managing a hobby farm, a backyard koi pond, a greenhouse irrigation manifold, or a rooftop rainwater system, this valve delivers effortless, maintenance-free operation. Every Lonoma order includes free US shipping and our 30-day return policy, so you can install with confidence and enjoy reliable water control season after season.
Free shipping on every order, with no minimum purchase.
Every order is carefully packed and shipped with full tracking, so you always know where your package is.
Order today and we'll ship it out the next business day.
Not quite right? You have 30 days to send it back, no questions asked.
We also back every product with a 2-year warranty against manufacturing defects, because we stand behind what we sell.
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Your Outdoor Spaces, Day After Day
Photos shared by customers who live outside as soon as the weather warms up.
