Pentair R201498 203 Wheel and Axle Assembly Replacement Kit ProVac Pool and Spa Vacuum Head Wheel and axle replacement kit assembly Fits Pentair Provac pool and spa vacuum head models 174, 176 Kit includes #174 wheels, #176 axle assembly 4 each, bubble pack card Measures 10-1/4-inch length by 8-1/2-inch height by 7-1/2-inch width