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Premium Grade Light Weight Synthetic Waterways - LeadFree Certified Fits all standard shower hoses - Classical Lever Handles 2-Hole 4" Installation - Installation Nuts and Washers Included Washerless Cartridges, Flow Rate, 2.2 gpm @ 60 psi, 8.3 L/min @ 414 kPa Tested to IAPMO UPC & CUPC.