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making it compatible with most industrial control circuits and pump starters
This collar is specifically intended for 1/2" round or 3/8" square shaft adapters
Direct-Acting Reliability: Operates efficiently without requiring a pilot pressure
Optimized Compatibility: Engineered specifically for Nordyne-manufactured air conditioners and heat pumps
What is the difference between the 550SVR and standard 550 models
Crown Engineering 10010 Coupler 321894-709 making it compatible with mostThe Crown Engineering 10010 Coupler is a professional grade Spiralink pump coupler designed for high torque hydronic heating systems. Specifically engineered for 1 12 to 1 3 HP motors, it features a unique single spring spiral design that provides 3 dimensional flexibility to compensate for shaft misalignment between the motor and the pump head. Unlike older, multi part "fly away" couplings, this one piece HVAC pump coupling eliminates friction
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