New York Replacement Parts is a proud distributor of Watts products. This WATTS 0888900 First Check Repair Kit for 3 - 4 Inch Double Check Valve Assembly Series 775 is a direct replacement manufactured by Watts. Order this This WATTS 0888900 First Check Repair Kit for 3 - 4 Inch Double Check Valve Assembly Series 775 today. Most orders usually ship the same day and we offer free shipping for orders over $99!