it utilizes 3/4" ODF suction and 1/2" ODF discharge sweat connections

and pumps within these specific horsepower limits

The Watts 0887709 (RK 800M4V) is a professional-grade pressure vacuum breaker vent float kit designed specifically for the 1/2" and 3/4" 800M4 series backflow preventers

Durable Construction: High-grade steel composition maintains structural integrity under extreme combustion temperatures and high-temperature conditions

unthreaded

McDonnell & Miller 306700 Kit it utilizes 3/4" ODF suctionOptimize your industrial flow control systems with the McDonnell & Miller 306700, a professional grade FS7 28 bronze paddle kit designed for high performance liquid flow switches. This kit is the direct OEM replacement for FS7 4 Series units, including 1 inch and 6 inch bronze paddles to accommodate various pipe diameters and flow velocities. Whether you are servicing FS7 4, FS7 4E, or FS7 4W models, these precision engineered paddles ensure accurate