Our 3/8" Check Valve has the following features: Connects to 3/8" ID Hose Copper valve with glass ball and stainless steel spring 100% Made and Manufactured in the U.S.A. Additional Information  Length Width Height 2 1/8" 5/8" 5/8"

Our 1/2" Check Valve has the following features: Connects to 1/2" ID Hose Copper valve with glass ball and stainless steel spring 100% Made and Manufactured in the U.S.A. Additional Information  Length Width Height 2 1/2" 7/8" 7/8"

Our 3/4" Check Valve has the following features: Connects to 3/4" ID Hose Copper valve with glass ball and stainless steel spring 100% Made and Manufactured in the U.S.A. Additional Information  Length Width Height 3 1/8" 1 1/8" 1 1/8"

Our 1" Check Valve has the following features: Connects to 1" ID Hose Copper valve with glass ball and stainless steel spring 100% Made and Manufactured in the U.S.A. Additional Information  Length Width Height 3 5/8" 1 1/4" 1 1/4"