Best Seller | PARKER CV4P-6FS-6FS Copper Check Valve,1/2 Dia x 3 3/4 In L Refrigeration Check Valve, Connection Size 3/8 in Fe Solder, Cut Out Length 3 in, Outside Dia. 1/2 in, Length 3 3/4 in, Material Copper, For Use With All CFC, HCFC and HFC Refrigerants, Style Ball, Spring Loaded ... more PARKER CV4P-6FS-6FS Copper Check Valve,1/2 Dia x 3 3/4 In L Refrigeration Check Valve, Connection Size 3/8 in Fe Solder, Cut Out Length 3 in, Outside Dia. 1/2 in, Length 3 3/4 in, Material Copper, For Use With All CFC, HCFC and HFC Refrigerants, Style Ball, Spring Loaded | | $23.99 go to store |