Crown Engineering 10010 Coupler 321894-709 This model features a 32-foot

This model features a 32-foot pitch and utilizes a ball bearing motor design

making it compatible with most industrial control circuits and pump starters

Direct-Acting Reliability: Operates efficiently without requiring a pilot pressure

Durable Construction: Engineered to withstand high-cycle operation and the thermal fluctuations of furnace vestibules

Optimized Compatibility: Engineered specifically for Nordyne-manufactured air conditioners and heat pumps

Crown Engineering 10010 Coupler 321894-709 This model features a 32-footThe 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