Best Float Valve Kit

Best Float Valve Kit

The V34KBA Best Float Valve Kit (Best Float Valve / “Watson valve”) is a rugged, simple livestock tank float valve kit designed for reliable water level control in nearly any trough or stock tank. Built to handle up to 90 PSI, it combines a hot-dip galvanized steel body and 18" lever with a brass valve seat and a replaceable EPDM rubber washer for long service life with minimal fuss—especially in mild or soft water cattle tanks.

Country of Origin: Made in the USA

Key Features / Specifications

• Model / Part #: V34KBA
• Product Type: Livestock water tank float valve kit (Best Float Valve / Watson valve)
• Max Pressure: Up to 90 PSI
• Body / Lever: Hot-dip galvanized steel body with 18″ lever
• Valve Seat: Brass
• Washer: Replaceable EPDM rubber washer
• Float: 6″ × 12″ float
• Chain: Zinc chain
• Flow Rate: 13 GPM on 1-1/2″ line at 5 PSI; 50 GPM on 2″ line at 45 PSI
• Design: No binding parts for smooth operation
• Install Flexibility: Lever can be turned over to allow water entry from the top of the tank
• Pipe Fitting Options: 3/4″, 1″, 1-1/4″, or 1-1/2″ (option dependent)
• Lever Options: Straight, bent, or 90° (comes with deflector cap)
• Bleeder Option: Can be ordered with bleeder valves for continuous flow
• Porting Option: Can be ordered ported and plugged for future ice prevention methods

Ideal For

• Livestock water tanks and troughs needing a durable, simple float valve
• Cattle stock tanks in mild or soft water conditions (standard kit use case)
• Setups running up to 90 PSI with strong flow requirements
• Users who want serviceable parts (replaceable EPDM washer) and low-maintenance operation
• Installations that may later add ice prevention, where a ported and plugged valve provides flexibility